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    On some equations concerning quantum electrodynamics coupled to quantum gravity, the

    gravitational contributions to the gauge couplings and quantum effects in the theory of

    gravitation: mathematical connections with some sector of String Theory and Number Theory

    Michele Nardelli 2,1

    1 Dipartimento di Scienze della Terra

    Universit degli Studi di Napoli Federico II, Largo S. Marcellino, 10

    80138 Napoli, Italy

    2 Dipartimento di Matematica ed Applicazioni R. Caccioppoli

    Universit degli Studi di Napoli Federico II Polo delle Scienze e delle Tecnologie

    Monte S. Angelo, Via Cintia (Fuorigrotta), 80126 Napoli, Italy

    Abstract

    This paper is principally a review, a thesis, of principal results obtained from various authoritative

    theoretical physicists and mathematicians in some sectors of theoretical physics and mathematics.

    In this paper in the Section 1, we have described some equations concerning the quantum

    electrodynamics coupled to quantum gravity. In the Section 2, we have described some equationsconcerning the gravitational contributions to the running of gauge couplings. In the Section 3, we

    have described some equations concerning some quantum effects in the theory of gravitation. In the

    Section 4, we have described some equations concerning the supersymmetric Yang-Mills theory

    applied in string theory and some lemmas and equations concerning various gauge fields in any

    non-trivial quantum field theory for the pure Yang-Mills Lagrangian. Furthermore, in conclusion, in

    the Section 5, we have described various possible mathematical connections between the argument

    above mentioned and some sectors of Number Theory and String Theory, principally with some

    equations concerning the Ramanujans modular equations that are related to the physical vibrations

    of the bosonic strings and of the superstrings, some Ramanujans identities concerning and the

    zeta strings.

    1. On some equations concerning the quantum electrodynamics coupled to quantumgravity. [1]

    The key equations that govern the behaviour of the coupling constants in quantum field theory are

    the renormalisation group Callan-Symanzik equations. If we let g denote a generic coupling

    constant, then the value of g at energy scale E, the running coupling constant ( )Eg , is determinedby

    ( )( )gE

    dE

    EdgE ,= , (1)

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    where ( )gE, is the renormalisation group -function. Asymptotic freedom is signaled by

    ( ) 0Eg as E , requiring 0

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    As with the Green function (4) the divergent part of (7) comes from the 0 limit of the proper

    time integral. The divergent part of L is

    divp ( )

    ++=

    2

    21

    2

    0

    44

    2 ln2

    1

    32

    1ccc EtrEtrEEtrEExdL . (9)

    The lower limit on the proper time integration can be kept as 0= and the divergent part of the

    effective action L contains a simple pole as 0 given by

    divp ( ) = 24

    216

    1xtrEdL

    . (10)

    The general form of ij is

    ( ) ( ) ( )iji

    j

    i

    j

    i

    j CBA ++=

    (11)

    for coefficients ( )ijA , ( )ijB

    and ( )ijC that depend on the spacetime coordinates through the

    background field. Normal coordinates are introduced at 'x with yxx += ' and all of the

    coefficients in (11) are expanded about 0=y . This gives

    ( ) ( ) ( )

    =

    +=1

    ...0 ...1

    1

    n

    i

    j

    i

    j

    i

    jn

    nyyAAA

    (12)

    with similar expansions for ( )ijB and ( )ijC . The Green function is Fourier expanded as usual,

    ( )( )

    ( )

    = pGpedxxGi

    j

    yipn

    n

    i

    j2

    1', , (13)

    except that the Fourier coefficient ( )pGij can also have a dependence on the origin of the coordinate

    system 'x that is not indicated explicitly. If

    ( ) ( ) ( ) ( ) ...210 +++= pGpGpGpGi

    j

    i

    j

    i

    j

    i

    j (14)

    where ( )pG ijr

    is of order rp 2 as p it is easy to see that to calculate the pole part of ( )xxG ij ,

    as 4n only terms up to and including ( )pG ij2

    are needed.

    The gravity and gauge field contributions result in

    tr ( )++++

    ++++=

    222222

    1 381232

    1

    32

    1

    8

    3

    2

    1

    8

    3

    8

    1

    4

    3

    8

    3 vvFE . (15)

    The overall result for the quadratically divergent part of the complete one-loop effective action (8)

    that involves 2F is

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    ( )

    ++++=

    2422

    2

    221

    32

    1

    32

    1

    8

    3

    2

    1

    8

    3

    8

    5

    4

    3

    8

    3

    32Fxd

    Ecquad

    . (16)

    ( )

    ++++=

    2422

    2

    221

    32

    1

    32

    1

    8

    3

    2

    1

    8

    3

    8

    5

    4

    3

    8

    3

    216

    1Fxd

    Ecquad

    . (16b)

    If 0 , 0 , 1 are taken to obtain the gauge condition independent result, the non-zero

    result

    ( )=

    24

    2

    221

    128Fxd

    Ecquad

    (17)

    is found.

    The net result for the divergent part of the effective action that involves 2F and therefore

    contributes to charge renormalization is

    divp ( )( )

    +

    =

    242

    2

    22

    2

    2

    2

    221 ln

    48ln

    256

    3

    128FxdE

    eE

    Ecc

    c

    . (18)

    divp ( )( )

    +

    =

    242

    2

    22

    2

    2

    2

    221 ln

    3ln

    16

    3

    816

    1FxdE

    eE

    Ecc

    c

    . (18b)

    From this the renormalization group function in (1) that governs the running electric charge to be

    calculated to be

    ( ) eEeeE

    +=

    23

    3212, 2

    2

    2

    2

    3

    . (19)

    The first term on the right hand side of (19) is that present in the absence of gravity and results in

    the electric charge increasing with the energy. The second term on the right hand side of (19)

    represents the correction due to quantum gravity. For pure gravity with no cosmological constant, or

    for small cosmological constant , the quantum gravity contribution to the renormalization group

    -function is negative and therefore tends to result in asymptotic freedom.

    2. On some equations concerning the gravitational contributions to the running of gaugecouplings. [2]

    The action of Einstein-Yang-Mills theory is

    =

    aaggRgxdS

    FF

    4

    112

    4 (20)

    where R is Ricci scalar and aF is the Yang-Mills fields strength = ,igF .

    It is hard to quantize this lagrangian because of gravity-parts non-linearity and minus-dimension

    coupling constant G 16= . Usually, one expands the metric tensor around a background metric

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    ++=

    2

    2

    22

    222

    2

    2

    1 1ln16

    1

    c

    sw

    s

    csc

    My

    MM

    . (25)

    Putting 1 and2 in the following equation

    =

    122

    3g , (26)

    we obtain the gravitational corrections to the gauge function

    ++

    =

    2

    2

    02

    2

    2

    22 1ln16 c

    sw

    s

    cs

    My

    Mg

    (26b)

    In general, the total function of gauge field theories including the gravitational effects may bewritten as follows

    ++

    +=

    2

    2

    02

    2

    2

    223

    021ln

    1616

    1

    c

    sw

    s

    cs

    My

    Mggb

    . (27)

    The interesting feature of gauge theory interactions is the possible gauge couplings unification at

    ultra-high energy scale when the gravitational effects are absent. Where the running of gauge

    coupling in the Model Standard Super Symmetric (MSSM) without gravitational contributions is

    known to be

    ( ) ( )

    M

    Mee ln10

    3311+=

    ; ( ) ( )

    M

    Mww ln2

    111+=

    ; ( ) ( )

    M

    Mss ln2

    311=

    (28)

    with experimental input at ZM

    ( ) 05.097.581 = Ze M ; ( ) 05.061.291

    =

    ZwM ; ( ) 22.047.81 = Zs M (29)

    We note that these values are equal to the following values connected with the aurea ratio:

    38,12461180 + 20,56230590 = 58,68691770; 29,12461180; 8,49844719.

    Indeed, we have:

    ( ) ( ) ( ) 12461180,38370820393,12361803399,109016994,1137/77/35 =+=+ ;

    ( )[ ] 56230590,20385410197,637/28 = ;

    ( ) ( ) ( ) ( ) =++=++ 323606798,061803399,285410197,637/217/147/28

    12461180,29370820394,9 = ;

    ( ) ( ) ( ) ( ) ( +++=+++ 055728089,0145898033,061803399,237/637/427/287/14

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    ) 49844719,83832815729,23013155617,0 =+ .

    As usual, 61803399,12

    15

    += , i.e. the value of the aurea ratio.

    3. On various equations concerning some quantum effects in the theory of gravitation[3]

    The general spherical static metric is given by

    ( ) ( ) 222122 ++= drdrrhdtrfds , (30)

    where ( )rf and ( )rh are arbitrary functions of the coordinate r. The angular part of the metric isdiagonal and given by

    ( )

    =

    +=

    =

    2

    1

    2

    1

    222 sind

    i

    d

    ij

    jidd . (31)

    Consider an interesting classical scalar field ( )x living in a spacetime with the metric (30). Thisfield has an action given by:

    =

    =2

    2

    n

    n

    n

    dgxdS . (32)

    The n are a set of arbitrary coupling constants. In particular,2

    2 m gives the mass of a weakly

    coupled excitation of this field. We will expand in the eigenmodes of the free, classical wave

    equation such that

    ( ) ( )= xadx ppp , (33)

    pp m 22

    = . (34)

    A sufficiently large set of quantum numbers p label the eigenbasis. The abstract formal expression

    pd simply represents an appropriate measure over the modes under which

    ( ) ( ) ( ) = yxyxdd

    ppp ,

    and

    ( ) ( ) = pqqpd xxgxd .

    Now we want to consider the energy density, , of a massless scalar field in a infinitely large

    hypercubic blackbody cavity at temperature T. Consider a real scalar field ( )txI , , where I issome kind of p -dimensional polarization index representing p internal degrees of freedom (for

    example, in a well-chosen gauge, the transverse polarization of an Abelian vector field behavesessentially like an internal index on a scalar field with 2= dp ). Further assume that the field is

    sufficiently weakly coupled that each polarization component can be treated as an independent field

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    obeying an action similar to eq. (32) with all interaction coefficients higher than 22 M set equal

    to zero. Then each field component obeys the classical equation of motion

    ( ) ( )xMx II 22 = . (35)

    The solutions to equation (35) may be expressed as a sum over modes labelled by a wave vector ak

    obeying22

    Mk = :a

    a

    I

    k

    a

    a

    I

    k

    I

    kxkBxkA cossin += , (36)

    for arbitrary real coefficients IkA andI

    kB . We take the state to be labelled by the 1d spatial

    components ofak and fix the frequency of each mode by

    i

    ik kkMk +=22

    0

    2 . We now confine

    the field to live in a cubic box of side length L by demanding Dirichlet boundary conditions at

    Lxi ,0= for 1...1 = di . This demands 0=I

    kB and

    ii mL

    k

    = , (37)

    whereim is a spatial vector whose components are non-negative integers. The total energy in the

    hypercube is given by

    =

    =

    =

    =p

    I m m

    mIk

    d

    nU1 0 01 1

    ... , (38)

    where we understand that k is given by

    =

    +=1

    1

    2

    2

    22

    d

    i

    ik mL

    M

    . (39)

    The set of integers mIn defining the quantum state must obey the appropriate statistics for the field

    I . We have described a pure quantum state of the theory. At a finite temperature T and zero

    chemical potential, the system will be in a mixed state governed by the partition function

    { }

    =mI

    k

    n

    eQ

    , (40)

    where T/1 . This can be evaluated to give

    ( )

    =

    =

    =0 01 1

    1ln...lnm md

    kepQ , (41)

    where 1= for bosons and 1= for fermions. The overall factor ofp occurs because the energy

    is independent of p , so each polarization mode contributes equally. The average occupation

    number of a given momentum mode in the thermal state is then given by

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    =

    =

    ==

    p

    I k

    mImke

    pQnn

    1

    ln1

    . (42)

    The total energy in the hypercube can now be found by combining the expressions (38) and (42), or

    by

    =

    =

    =

    =

    ==

    =

    0 0 0 01 1 1 1

    ......lnm m m m

    kmk

    d d

    ke

    pnQU

    . (43)

    We should pass from a state labelling in terms of quantum numbers im to a labelling in terms of

    physical momenta ik , with a mode density determined by the differential limit of equation (37).

    The sums over im then become integrals over ik as

    ( )

    k

    e

    pLkdU k

    d

    dd

    L

    1

    11

    2

    , (44)

    where k is understood asi

    ikkM +2 . The factors of 2 in the denominator of the measure arise

    because the integrals over the ik run over both positive and negative values, whereas the im were

    only summed over non-negative values. Equation (44) scales properly with the volume, so that even

    in the infinite volume limit we can define the spectral energy density over ik modes. Using the

    spherical symmetry of the infinite volume limit and defining ii

    i kkkk == , eq. (44) becomes

    ( )( )

    +

    +

    == 0

    222

    1

    2

    22

    2 kM

    d

    d

    d

    e

    kMkdk

    SVolpV

    U

    . (45)

    This defines the spectral energy density over the magnitude of the spatial momentum, via

    ( ) kdkuk , as

    ( )( )

    ( )

    +=

    +

    22

    222

    1

    2

    2 kM

    d

    d

    d

    k

    e

    kMkSVolpku . (46)

    Similarly, we can define the spectral energy density over the frequency as

    ( )( )

    ( )

    ( )( )

    =

    e

    MSVolpu

    d

    d

    d 2/3222

    1

    2

    2, (47)

    where runs over [ ],M .The total energy density can now be evaluated using either eq. (46) or eq. (47) match. Simple

    analytic results can be found for the case 0=M , which will also apply when MT >> . In this case,

    k= and equations (46) and (47) match. They give

    ( )( )

    = 0

    1

    1

    2

    2 x

    d

    d

    dd

    e

    x

    dx

    SVol

    pT . (48)

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    The integral can be evaluated by pulling the exponential into the numerator, performing a Taylor

    series in xe , doing the integral, and resumming the Taylor series. The result for the general definite

    integral is given by

    ( )

    ( )( )

    =

    =

    b

    a

    d

    n

    bnan

    dx

    d

    n

    ebeadde

    dxx 1

    0

    2/11

    !!12

    21

    , (49)

    where ( )s is the Riemann zeta function, which can be defined for real 1>s as

    ( )

    =

    =1

    1

    nsn

    s . (50)

    This series arises in the evaluation of the integral with the 1= , for bosons. For fermions, 1= ,

    the corresponding series is

    ( ) ( )

    =

    1

    1 11n

    s

    n

    nsR . (51)

    This series can be evaluated using

    ( ) ( ) ( )sssssss

    2

    2...

    6

    2

    4

    2

    2

    2=+++= R , (52)

    so that

    ( ) ( )sss

    =

    2

    21R , (53)

    which is the origin of this factor in eq. (49). So, eq. (48) becomes

    ( )( )( )

    ( )

    d

    ddd

    Td

    ddp

    2/12

    2/1

    2

    12

    !1

    2

    21

    =

    . (54)

    Furthermore, we can rewrite the eq. (48) also as follows:

    ( )( )

    =

    =

    0

    1

    1

    2

    2

    x

    d

    d

    dd

    e

    xdx

    SVolpT

    ( ) ( )( )

    ( )

    d

    ddd

    Td

    ddp

    2/12

    2/1

    2

    12

    !1

    2

    21

    . (54b)

    Before, we have considered the energy density, , of a massless scalar field in a infinitely large

    hypercubic cavity at temperature T. We now want to calculate the energy flux, , emitted from a

    blackbody with this same temperature. For the flux calculation, instead of 2dSVol we will

    encounter

    ( ) =

    222

    2cos dddd

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    ( ) ( )( )( )

    ( )( ) ==

    =

    =

    =

    2

    0 0 0

    2/

    0

    32/23

    2

    122321

    2

    1

    2

    22

    2sincos... d

    dd

    i

    iidddSVol

    ddd

    dddd

    ( ) ( ) ( )22

    2

    22

    1

    21

    == dd SVol

    d

    d

    dBVol

    , (55)

    where ( )x is the step function and nB is the n-dimensional unit ball: the compact subspace of nR

    bounded by1nS (for example, 3B is the unit 3-ball of volume 3/4 bounded by the sphere 2S of

    area 4 ). The fact that the expression for the energy density becomes that for the flux when

    ( )2dSVol is replaced by ( )2dBVol makes physical sense, since nB is the projection of nS onto nR .We are left with the relationship of flux to energy density as

    ( )

    ( )( )

    2

    2

    2

    22

    2

    1

    =

    =d

    d

    SVol

    BVol

    dd

    d

    . (56)

    Thus, the d-dimensional Stefan-Boltzmann law is given by

    ( )( )( )

    ( )

    d

    ddd

    Td

    d

    ddp

    2/2

    2/1

    2

    222

    !1

    2

    21

    =

    . (57)

    4. On some equations concerning the supersymmetric Yang-Mills theory applied in string

    theory and some lemmas and equations concerning various gauge fields in any non-trivial

    quantum field theory for the pure Yang-Mills Lagrangian. [4] [5]

    The fields of the minimal 2=N supersymmetric Yang-Mills theory are the following: a gauge field

    mA , fermionsi

    and i& transforming as ( )2/1,0,2/1 and ( )2/1,2/1,0 under

    ( ) ( ) ( )IRL SUSUSU 222 , and a complex scalar B - all in the adjoint representation of the gaugegroup. Covariant derivatives are defined by

    ( )+= mmm iAD , (58)

    and the Yang-Mills field strength is

    [ ]nmmnnmmn AAAAF ,+= . (59)

    The supersymmetry generators transform as ( ) ( )2/1,2/1,02/1,0,2/1 ; introducing infinitesimal

    parameters i and i& , furthermore [ ]BBD ,= . The minimal Lagrangian is

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    [ ] [ ] [ ]

    +

    =

    M

    ii

    ijji

    ij

    m

    m

    i

    m

    m

    i

    mn

    mn Bi

    Bi

    BBBDBDDiFFxTrde

    L

    &

    &&

    &,

    2,

    2,

    2

    1

    4

    11 242

    (60)

    Here Tr is an invariant quadratic form on the Lie algebra which for ( )NSUG = we can

    conveniently take to be the trace in the N dimensional representation.It is possible to realize a mass term for the 1=N matter multiplet (which consists of B and2&

    = ) by adding to the Lagrangian a term of the form ( ) { },...1QI + , where 1Q is the charge

    corresponding to the 1 transformation. Furthermore, 1Q is the only essential symmetry. We

    obtain:

    ( ) { } ( ) +=++=M M

    BBmTrmxdemmxTrdLQILL 22

    1,... 42

    22

    224

    1 &&

    &

    &

    &&

    , (61)

    with

    mnklklmnm 22&&= . (62)

    The mass is proportional to the holomorphic two-form . The 1=N gauge multiplet, consisting of

    the gauge field mA and the gluinoi

    = , remains massless.

    With regard the 16 -amplitude in the type IIB description, the classical action for the operator ( )16

    in the5

    5 SAdS supergravity action is

    [ ] ( ) ( )( ) ( ) =

    +=

    16

    1

    0

    5

    0

    0

    004165

    0

    00

    412

    12 1

    ;,1

    5

    0

    p

    pppSs

    ig

    xJxxxxKtdxdVgeJSs

    . (63)

    This result is in agrees with the following expression obtained in the Yang-Mills calculation:

    ( )( )[ ]

    ( )( ) =

    +

    +

    +=

    16

    1

    00

    0

    42

    0

    2

    0

    4

    088

    5

    0

    00

    4

    8

    8

    16

    1122

    p

    A

    p

    A

    p

    ig

    YMp

    pp

    pp

    p

    p

    YM

    YM xxxx

    dddxdegxG

    &

    &

    (64)

    i.e. the correlation function in the super Yang-Mills description.

    The low energy effective action for type IIB superstring theory in ten dimensions includes the

    interaction (in the string frame)

    ( ) ( ) ( ) ( ) ( )

    ++++

    464222104 ...69

    2462323 RDeeegxdlS s

    , (65)

    where the involve contributions form D-instantons.

    We consider the perturbative contributions to the46

    RD interaction. The sum of the contributions to

    the four graviton amplitude at tree level and at one loop in type II string theory compactified on 2T

    is proportional to ( ) ( ) ( )( ) ( ) ( )

    4

    222

    2222

    2 24/14/14/1

    4/4/4/R

    +

    +++

    I

    ultlsl

    ultlsleV

    sss

    sss , (66)

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    where 2V is the volume of2

    T in the string frame, uts ,, are the Mandelstam variables, and I is

    obtained from the one loop amplitude. The amplitude is the same for type IIA and type IIB string

    theories. Now I is given by

    ( )

    = F ,22

    2

    FZd

    I lat (67)

    where F is the fundamental domain of ( )ZSL ,2 , and 2/2 = ddd . In the above expression, the

    lattice factor latZ which depends on the moduli is given by

    ( ) ( )( )

    =

    ZMatA

    lat AUU

    TAiTVZ

    ,22

    2

    22

    22

    11det2exp

    . (68)

    Expanding eq. (67) to sixth order in the momenta, we get that

    ( )[ ]213336

    3

    IIutsl

    I s +++= , (69)

    where

    ( ) ( ) ( ) =

    =

    Li

    ilat

    dZ

    dI

    F T

    3

    1

    323121

    2

    2

    2

    2

    2

    1 ;;ln;ln4

    , (70)

    and

    =2I ( )[ ]

    =

    Li

    ilat

    dZ

    d

    F T

    3

    1

    3

    21

    2

    2

    2

    2

    2

    ;ln

    . (71)

    We have also that

    ( ) ( ) ( ) ++=

    =L

    IIIEZd

    IZSL

    latF

    3

    3

    2

    1

    1

    1

    ,2

    32

    2

    2

    1

    3

    ,4

    4, (72)

    where 211

    1, II , and 31

    I are the contributions from the zero orbit, the non-degenerate orbits and the

    degenerate orbits of ( )ZSL ,2 respectively. In the eq. (72), we have used the expression

    ( ) ( ) ( ) ( ) ( ) 12121

    2

    2122/5

    2/5

    0,0 2

    12

    3

    2

    2

    3

    2

    ,2

    3 254

    362,

    +

    += mimmm

    ZSLemmK

    m

    mE

    . (73)

    Thence, we can rewrite the eq. (72) also as follows:

    ( )

    =

    LlatZ

    dI

    F2

    2

    2

    1

    3

    4

    4 ( ) ( ) ( ) 121

    21

    2

    2122/5

    2/5

    0,0 2

    12

    3

    2

    2

    3

    2 254

    362

    +

    + mimmm

    emmKm

    m

    . (74)

    The contribution from the zero orbit gives

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    ( ) ( ) =

    =L

    ZSLE

    dVI

    F

    0,,2

    32

    2

    2

    2

    1

    1 . (75)

    The contribution from the non-degenerate orbits gives

    ( ) ( )

    >

    ++

    =

    =

    00,0

    2,2

    32

    2

    212

    2

    1

    2

    22

    2

    ,2

    pjk

    pUjkU

    TiTkp

    ZSLeE

    ddVI

    ( ) ( ) ( )

    =0,0

    2

    22/5

    2/5,2

    3212,2

    kp

    ipkTZSLepkTK

    k

    pUUET

    . (76)

    Furthermore, the contribution from the degenerate orbits gives

    ( ) ( ) ( ) ( ) ( ) ( )

    ( ) ( )

    +

    +=

    =

    2/1

    2/1 0 0,0,

    ,2

    32

    2

    3

    23

    ,2

    32

    2

    212

    3

    1 ,

    4

    5362

    2,

    2

    22

    2

    pj

    ZSLpUj

    U

    T

    ZSLUUE

    T

    TeEd

    dVI

    .

    (77)

    Now we want to show two lemmas and equations concerning the gauge fields as described in the

    Jormakkas paper Solutions to Yang-Mills equations [5]. Thence, in the next Section, we

    describe some possible mathematical connections between some equations concerning this

    interesting argument and some equations concerning the Ramanujans modular equations that are

    related to the physical vibrations of the bosonic strings and of the superstrings, and some

    Ramanujans identities concerning .

    Lemma 1

    Let the gauge field satisfy

    ( ) = =

    3

    1

    22

    321

    , ,,,0 jj

    ecsxxxA aRa

    (78)

    where j and c are as in the following expressions:

    jjj ir +=

    , Rjj

    , ; 3211 2xxx+=

    ; 3212 2xxx=

    ; 313 2

    1

    xx+=

    ;

    021 == ; 032

    1x= ; ) ) )jjjjj ivurh ,, += (79)

    20 =c ; 121 == cc ; 03 =c ; 20 =e ; 121 == ee ; 03 =e , (80)

    and Rsa , . Then

    ( )( )

    =

    3

    2/3

    222

    321

    3 1

    2,,,0

    ka

    a

    k csxxxAxd . (81)

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    15

    The expression (79) describes a localized gauge field, gauge boson, which moves in the 21,xx

    direction with the speed of light as a function of 0x . We select a concrete case that gives easy

    calculations. Let ( ) 22 jjf = and extend it to ( )22

    jj rrh = . The real and imaginary parts of

    iecd += are described from (80). We evaluate the gauge potential at 00 =x and take the real

    part.

    We change the variables to 321 ,, yyy

    32116

    1

    3

    23 xxxy = ; 322

    3

    1

    3

    2xxy = ; 33 2xy = (82)

    Then

    =

    ++=3

    1

    2

    3

    2

    2

    2

    1

    2

    j

    j yyy (83)

    As 2y and 3y are not functions of 1x we can change the order of integration

    ( ) ( ) ( ) ( )

    ===

    = ++ ==

    21

    223

    22

    221

    223

    22

    23

    1

    223

    1

    22 22

    1

    1

    22

    2

    1

    1

    233

    3

    1 yyyyyyyedyxededxxedxedxed j

    jj j

    ( ) ( )

    +

    =1

    2 223

    123

    22

    2

    yyxed (84)

    As 3y

    is not a function of 2x we can change the order of integration

    ( ) ( )

    +21

    223

    22

    2 22

    1

    1

    2

    3

    1 yyyedyxed

    ( ) ( ) ==

    +

    12 22

    3

    123

    22

    2

    yyxed

    ( )( )

    ( )( )

    ===

    22

    223

    222

    223

    2 22

    1

    23

    122

    1

    23

    1

    222

    3

    3

    122

    3

    1 yyyyedyedxedxedx

    ( )( ) ( )( ) ( ) ( ) 323

    3

    2

    3

    2

    222

    1

    2

    3

    3

    122

    2

    1

    2

    3

    3

    122

    2

    3

    3

    1 23

    223

    2

    === yy

    edyedx . (85)

    Thus

    3

    2

    3

    23 1

    2

    22

    =

    jxed

    =

    3

    323 1

    2

    22

    jxed

    ( )( )

    =

    3

    2/3

    222

    321

    3 1

    2,,,0

    ka

    a

    k csxxxAxd . (86)

    Thence, we can conclude that the eq. (81) is true.

    We can rewrite the eq. (85) also as follows:

    ( ) ( ) + 21

    223

    22

    2 22

    1

    1

    2

    3

    1 yyy edyxed ( ) ( ) ==

    + 12 223

    123222 yyxed ( ) ( ) =3

    23

    2221

    23

    3

    1

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    ( ) ( )( )6

    321

    2

    2

    1

    4822

    3

    123

    22

    2

    =

    =

    + yy

    xed . (86b)

    Lemma 2

    Let the gauge field satisfy

    ( ) = =

    3

    1

    22

    321

    , ,,,0 jj

    ecsxxxA aRa

    (87)

    where j and c are as in (79), (80) and Rsa , . Then

    = a aBsd 2

    3

    3

    161

    RL (88)

    where in Minkowskis metric at 00 = x , we have 0=B . In the negative definite metric

    ( )

    =

    1000

    0100

    0010

    0001

    ,g , (88b)

    we have that 43

    2

    3

    13++=B .

    From (79) and (82) follows that

    32112

    1

    6

    1

    3

    1yyy += ; 3212

    2

    1

    6

    1

    3

    1yyy = ; 213

    3

    2

    3

    1yy = . (89)

    For Minkowskis metric

    ( ) 3263152142332222110 yyByyByyByByByBP +++++== (90)

    where 0=kB for all k. For the metric (88b)

    ( ) 3263152142

    33

    2

    22

    2

    1132

    2

    3

    2

    2

    2

    1 444 yyByyByyByByByBP +++++=++= (91)

    where

    3

    131 =B ;

    3

    22 =B ; 43 =B ; 2

    3

    44 =B ;

    6

    45 =B ;

    3

    46 =B . (92)

    We do the integration with generic parameters jB . Then

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    ( ) ( )( )

    ( ) ( )

    ++++

    =23

    22

    21

    223

    22

    21

    22

    2

    1

    32

    2

    1

    3yyy

    xedPxed

    )( 3263152142

    33

    2

    22

    2

    11 yyByyByyByByByB +++++ .

    (93)

    As 2y and 3y are not functions of 1x we can change the order of integration and change the

    integration parameter 1x to 1y

    ( ) ( )( )

    ( ) ( )

    ++++

    =23

    22

    21

    223

    22

    21

    22

    2

    1

    32

    2

    1

    3yyy

    xedPxed

    )( 3263152142

    33

    2

    22

    2

    11 yyByyByyByByByB +++++ =

    ( ) ( ) ( )( )

    ( )

    ++++=

    + 2122

    122

    322

    22

    2

    1

    1326

    2

    33

    2

    22

    22

    1

    2

    111

    22

    1

    2yyyy

    edxyyByByBeydxBxed

    ( )( )

    =

    ++

    212

    22

    1

    113524

    y

    eydxyByB

    ( ) ( ) ( ) ( ) ( ) ++++=

    + 21221223222 221

    1326

    2

    33

    2

    22

    2212

    111

    2212

    3

    1 yyyy edyyyByByBeydyBxed

    ( )( )

    =

    ++

    212

    22

    1

    113524

    y

    eydyyByB

    ( ) ( )

    ( )( )

    +++=

    +

    2

    12

    2

    12

    3

    1326

    2

    33

    2

    2231

    22

    1

    223

    22

    2

    yyByByBBxedyy

    . (94)

    As 3y is not a function of 2x we can change the order of integration and change the integration

    parameter 2x to 2y :

    ( ) ( )( )

    ( ) ( )

    ++++

    =23

    22

    21

    223

    22

    21

    22

    2

    1

    32

    2

    1

    3yyy

    xedPxed

    )( 3263152142

    33

    2

    22

    2

    11 yyByyByyByByByB +++++ =

    ( ) ( )

    ( )( ) =

    +++=

    +

    2

    12

    2

    12

    3

    1326

    2

    33

    2

    2231

    22

    1

    223

    22

    2

    yyByByBBxedyy

    ( )

    ( )

    ( ) ( )

    ++=

    2222

    222

    32

    22

    1

    2

    222

    22

    1

    231

    22

    1

    32

    1

    2

    12

    2

    3

    3

    1 yyyeydyBedyBedx

    ( ) ( )

    =

    ++

    2222

    22

    2

    2

    1

    2236

    2

    2

    1

    22332

    1

    2

    1 yyeydyyBedyyB

    ( )

    ( ) ( )=

    ++=

    2

    12

    2

    1

    2

    12

    2

    1

    2

    12

    2

    12

    2

    3

    3

    1 2333231

    22

    1

    3

    23

    2

    yBBBedxy

    ( )

    ( ) ( ) ( )=

    ++=

    2

    2

    334241

    22

    1

    32

    1

    2

    1

    2

    12

    2

    1

    2

    3

    3

    1 232

    yBBBedyy

    ( ) ( )( ) ( )

    ( )32152

    3

    53212

    3

    2

    1

    2

    12

    2

    1

    2

    3

    3

    1BBBBBB ++=++=

    . (95)

    We can rewrite this equation also as follows:

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    ( ) ( )( )

    ( )253

    2

    326315214

    2

    33

    2

    22

    2

    11

    22

    1

    3

    16

    81

    4

    23

    22

    21

    2

    =

    +++++

    ++

    yyByyByyByByByBxedyyy

    . (95b)

    Thence, we can conclude that the eq. (88) is true. Indeed, we have that:

    ( ) ( )( )

    ( ) ( )

    ++++

    =23

    22

    21

    223

    22

    21

    22

    2

    1

    32

    2

    1

    3yyy

    xedPxed

    =+++++ )( 3263152142

    33

    2

    22

    2

    11 yyByyByyByByByB

    ( )( )3215

    2

    3

    2

    1BBB ++=

    ==

    a

    aBsd2

    33

    16

    1

    R

    L . (96)

    5. Ramanujans equations, zeta strings and mathematical connections

    Now we describe some mathematical connections with some sectors of String Theory and Number

    Theory, principally with some equations concerning the Ramanujans modular equations that are

    related to the physical vibrations of the bosonic strings and of the superstrings, the Ramanujans

    identities concerning and the zeta strings.

    3.1Ramanujans equations [6] [7]With regard the Ramanujans modular functions, we note that the number 8, and thence the

    numbers2864 = and 8232

    2= , are connected with the modes that correspond to the physical

    vibrations of a superstring by the following Ramanujan function:

    ( )

    ++

    +

    =

    4

    2710

    4

    21110log

    '

    142

    '

    cosh

    'cos

    log4

    3

    18

    2

    '

    '4

    0

    '

    2

    2

    wtitwe

    dxex

    txw

    anti

    w

    wt

    wx

    . (97)

    Furthermore, with regard the number 24 (12 = 24 / 2 and 32 = 24 + 8) this is related to the physical

    vibrations of the bosonic strings by the following Ramanujan function:

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    19

    ( )

    ++

    +

    =

    42710

    421110log

    '

    142

    '

    cosh

    'cos

    log4

    24

    2

    '

    '4

    0

    '

    2

    2

    wtitwe

    dxex

    txw

    anti

    w

    wt

    wx

    . (98)

    It is well-known that the series of Fibonaccis numbers exhibits a fractal character, where the forms

    repeat their similarity starting from the reduction factor /1 = 0,618033 = 2

    15

    (Peitgen et al.

    1986). Such a factor appears also in the famous fractal Ramanujan identity (Hardy 1927):

    ++

    +=

    ==

    q

    t

    dt

    tf

    tf

    qR

    0 5/45/1

    5

    )(

    )(

    5

    1exp2

    531

    5)(

    2

    15/1618033,0

    , (99)

    and

    ++

    +=

    q

    t

    dt

    tf

    tfqR

    0 5/45/1

    5

    )(

    )(

    5

    1exp

    2

    531

    5)(

    20

    32

    , (100)

    where 215 +=

    .

    Furthermore, we remember that arises also from the following identities (Ramanujans paper:Modular equations and approximations to Quarterly Journal of Mathematics, 45 (1914), 350-

    372.):

    ( )( )

    ++=

    2

    13352log

    130

    12

    , (100a) and

    ++

    +=

    4

    2710

    4

    21110log

    142

    24

    .

    (100b)

    From (100b), we have that

    ++

    +=

    4

    2710

    4

    21110log

    14224

    . (100c)

    Let ( )qu denote the Rogers-Ramanujan continued fraction, defined by the following equation

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    ( ) ,...1111

    ::325/1

    ++++==

    qqqqquu 1

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    21

    Using (109) in (107), we find that

    ( )( )

    ( ) ( ) ( ) =+= dqvuqdqd

    dqq

    dqqqqq

    dq

    q

    q/log8

    5

    840

    5

    8 5/1535

    5

    ( ) ( ) ( ) ( ) ( ) +

    +== k

    kkdqqqqvudqqqq 1

    1log5

    24log5

    840/log840

    5353

    , (111)

    where (104) has been employed. We note that we can rewrite the eq. (111) also as follows:

    ( )( )

    ( ) ( ) +

    +=k

    kkdqqqq

    q

    dq

    q

    q

    1

    1log

    5

    24log

    5

    840

    5

    8 535

    5

    . (112)

    Multiplying both sides for64

    5, we obtain the following identical expression:

    ( )( )

    ( ) ( ) +

    +=k

    kkdqqqq

    q

    dq

    q

    q

    1

    1log

    8

    13log

    8

    1

    8

    125

    8

    1 535

    5

    , (112b)

    or

    ( )( )

    ( ) ( )

    +

    +=

    k

    kkdqqqq

    q

    dq

    q

    q

    1

    1log3log25

    8

    1

    8

    1 535

    5

    . (112c)

    In the Ramanujans notebook part IV in the Section Integrals are examined various results on

    integrals appearing in the 100 pages at the end of the second notebook, and in the 33 pages of the

    third notebook. Here, we have showed some integrals that can be related with some argumentsabove described.

    ( )( )( ) ( )( )

    =

    +

    ++=

    01

    0 442

    2

    442

    2

    2

    2

    414

    414

    8

    12

    kxk

    na

    xae

    xdxa

    kae

    ka

    adnne

    ; (113)

    ( )( ) ( )

    = +++=

    +0 122442

    2 1

    44

    1

    414

    kx

    kaaa

    axae

    xdxa

    . (114)

    Multiplying both sides for2 , we obtain the equivalent expression:

    ( )( ) ( )

    = +++=

    +

    01

    22

    232

    442

    22 1

    44414

    kx

    kaaa

    axae

    xdxa

    . (114b)

    Let 0n . Then

    ( )( ) ( )( )

    ( ) ( ) ( ){ }( ) ( ){ }

    =

    +

    ++

    +=

    +0 0

    12

    2/12cosh12

    12cos12

    4coscosh

    2sin

    k

    nkk

    kk

    nke

    xxx

    dxnx

    . (115)

    Also here, multiplying both sides for 2 , we obtain the equivalent expression:

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    ( )( ) ( )( )

    ( ) ( ) ( ){ }( ) ( ){ }

    =

    +

    ++

    +=

    +0 0

    122

    32

    2/12cosh12

    12cos12

    4coscosh

    2sin

    k

    nkk

    kk

    nke

    xxx

    dxnx

    . (115b)

    Now we analyze the following integral:

    =

    ++

    =1

    0

    2

    15

    2

    411log

    :

    dxx

    x

    I ; (116)

    Let ( ) 2/411 xu ++= , so that uux = 2 . Then integrating by parts, setting vu /1= and using the

    following expression ( )( )

    =z

    dww

    wzLi

    02

    1log, Cz , and employing the value

    =

    2

    15log

    102

    152

    2

    2

    Li , we find that

    ( )( ) ( )( )( )( )

    + + +

    =

    +=

    =

    =

    2/15

    1

    2/15

    1

    2/15

    1

    2

    2

    1logloglog12

    logdu

    u

    u

    u

    udu

    u

    uuduu

    uu

    uI

    ( )( )

    +

    =

    +

    +=

    2/15

    1

    2 log1log

    2

    15log

    2

    1dv

    v

    vv

    ( )156102

    15log

    2

    11

    2

    15

    2

    15log

    2

    1 222222

    2 =+=

    ++

    += LiLi . (117)

    Thence, we obtain the following equation:

    ++

    =1

    0

    2

    411log

    dxx

    x

    I ( )( )

    1512

    log 22/15

    1 2

    =

    =

    +

    duuuu

    u. (118)

    Multiplying both sides for 4

    15, we obtain the equivalent expression:

    ++

    =1

    0

    2

    411log

    4

    15dx

    x

    x

    I ( )( )

    4154

    1512

    log

    4

    15 322/15

    1 2

    ==

    =

    +

    duuuu

    u;

    ++

    =1

    0

    2

    411log

    4

    15dx

    x

    x

    I ( )( )

    412

    log

    4

    15 32/15

    1 2

    =

    =

    +

    duuuu

    u. (118b)

    In the Ramanujans paper: Some definite integrals connected with Gausss sums (Ramanujan,1915 Messanger of Mathematics, XLIV, 75-85), are described the following integrals:

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    23

    =

    20

    23 3

    4

    1

    16

    1

    sinh

    cos

    dx

    x

    xx , (119)

    =0

    23

    16

    1

    sinh

    sin

    dx

    x

    xx , (120)

    +=

    022

    53

    2

    1

    64

    1

    1

    2cos

    dx

    e

    xxx

    , (121)

    +=

    022

    2 551

    256

    1

    1

    2cos

    dx

    e

    xxx

    . (122)

    Now, we sum (119) and (120) obtaining:

    +0

    23

    sinh

    cosdx

    x

    xx

    +=+

    =

    0 22

    23

    16

    1

    16

    3

    64

    1

    16

    13

    4

    1

    16

    1

    sinh

    sin

    dx

    x

    xx .

    Now we multiply both the sides for3 and obtain:

    +0

    233

    sinh

    cos

    ( dxx

    x

    x

    +=+=+=02

    3233

    2

    3323

    3416

    1

    1616

    3

    641616

    3

    64)sinh

    sin

    dxx

    x

    x ,

    thence

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx . (123)

    Now, we sum (121) and (122) obtaining:

    +

    0 2 1

    2cosdx

    e

    xx

    x

    +++=

    0 222

    2

    256

    5

    256

    5

    256

    1

    64

    5

    64

    3

    128

    1

    1

    2cos

    dxe

    xx

    x

    .

    Now we multiply both the sides for 3 and obtain the following equivalent equation:

    +++=

    +

    8

    5

    8

    5

    8

    1

    2

    5

    2

    3

    42

    1

    16

    1

    1

    2cos

    1

    2cos 2323

    0 0 2

    2

    2

    3dx

    e

    xxdx

    e

    xxxx

    . (124)

    In the work of Ramanujan, [i.e. the modular functions,] the number 24 (8 x 3) appears repeatedly.

    This is an example of what mathematicians call magic numbers, which continually appear where we

    least expect them, for reasons that no one understands. Ramanujans function also appears in stringtheory. Modular functions are used in the mathematical analysis of Riemann surfaces. Riemann

    surface theory is relevant to describing the behavior of strings as they move through space-time.

    When strings move they maintain a kind of symmetry called "conformal invariance". Conformal

    invariance (including "scale invariance") is related to the fact that points on the surface of a string's

    world sheet need not be evaluated in a particular order. As long as all points on the surface are taken

    into account in any consistent way, the physics should not change. Equations of how strings must

    behave when moving involve the Ramanujan function. When a string moves in space-time by

    splitting and recombining a large number of mathematical identities must be satisfied. These are the

    identities of Ramanujan's modular function. The KSV loop diagrams of interacting strings can be

    described using modular functions. The "Ramanujan function" (an elliptic modular function that

    satisfies the need for "conformal symmetry") has 24 "modes" that correspond to the physical

    vibrations of a bosonic string. When the Ramanujan function is generalized, 24 is replaced by 8 (8 +

    2 = 10) for fermionic strings.

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    24

    With regard the Section 1, we have the following mathematical connections between the eqs. (16b)

    and (18b) and the eqs. (112c), (123) and (124):

    ( )

    ++++=

    2422

    2

    221

    32

    1

    32

    1

    8

    3

    2

    1

    8

    3

    8

    5

    4

    3

    8

    3

    48

    1

    Fxd

    Ecquad

    ( )( )

    ( ) ( )

    +

    +=

    k

    kkdqqqq

    q

    dq

    q

    q

    1

    1log3log25

    8

    1

    8

    1 535

    5

    ; (125)

    ( )

    ++++=

    2422

    2

    221

    32

    1

    32

    1

    8

    3

    2

    1

    8

    3

    8

    5

    4

    3

    8

    3

    216

    1Fxd

    Ecquad

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx ; (126)

    ( )

    ++++=

    2422

    2

    221

    32

    1

    32

    1

    8

    3

    2

    1

    8

    3

    8

    5

    4

    3

    8

    3

    216

    1Fxd

    Ecquad

    +++=

    +

    8

    5

    8

    5

    8

    1

    2

    5

    2

    3

    42

    1

    16

    1

    1

    2cos

    1

    2cos 2323

    0 0 2

    2

    2

    3dx

    e

    xxdx

    e

    xxxx

    ; (127)

    divp ( )( )

    +

    =

    242

    2

    22

    2

    2

    2

    221 ln

    3ln

    16

    3

    82

    1

    8

    1FxdE

    eE

    Ecc

    c

    ( )

    ( )( )

    ( )

    +

    +=

    k

    kkdqqqq

    q

    dq

    q

    q

    1

    1log3log25

    8

    1

    8

    1 535

    5

    ; (128)

    divp ( )( )

    +

    =

    242

    2

    22

    2

    2

    2

    221 ln

    3ln

    16

    3

    816

    1FxdE

    eE

    Ecc

    c

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx ; (129)

    divp ( )( )

    +

    =

    242

    2

    22

    2

    2

    2

    221 ln

    3ln

    16

    3

    816

    1FxdE

    eE

    Ecc

    c

    +++=

    +

    8

    5

    8

    5

    8

    1

    2

    5

    2

    3

    42

    1

    16

    1

    1

    2cos

    1

    2cos 2323

    0 0 2

    2

    2

    3dx

    e

    xxdx

    e

    xxxx

    . (130)

    With regard the Section 2, we have the following mathematical connections between the eqs. (24)

    and (27) and the eqs. (123) and (124):

    ( ) ( ) ( ) ( ) ( ) ( ) ( )

    +++=+ 2

    2

    2

    22 02

    1162 k

    R

    q

    RR

    qkp

    ed

    LR IgkkgIgqqgIVdxGigT MM

    + 22 pR

    Igppg M

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx ; (131)

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    25

    ( ) ( ) ( ) ( ) ( ) ( ) ( )

    +++=+ 2

    2

    2

    22 02

    1162 k

    R

    q

    RR

    qkp

    ed

    LR IgkkgIgqqgIVdxGigT MM

    ( ) ( )]+ 22 pRIgppg M

    +++=

    +

    85

    85

    81

    25

    23

    421

    161

    1

    2cos

    1

    2cos 2323

    0 0 2

    2

    2

    3dx

    e

    xxdxe

    xxxx

    ; (132)

    ++

    +=

    2

    2

    02

    2

    2

    223

    021ln

    1616

    1

    c

    sw

    s

    cs

    My

    Mggb

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx ; (133)

    +++= 2

    2

    02

    2

    2

    2

    2302

    1ln1616

    1c

    sw

    s

    cs

    MyMggb

    +++=

    +

    8

    5

    8

    5

    8

    1

    2

    5

    2

    3

    42

    1

    16

    1

    1

    2cos

    1

    2cos 2323

    0 0 2

    2

    2

    3dx

    e

    xxdx

    e

    xxxx

    . (134)

    Thence, mathematical connections with the Ramanujans modular equations that are related to the

    physical vibrations of the superstrings and with the Ramanujans identities concerning .

    With regard the Section 4, we have the following mathematical connections between the eqs. (85)

    and (95b), that derive from the (95), and the eqs. (114b), (115b), (118b), (123) and (124):

    ( ) ( )

    +21

    223

    22

    2 22

    1

    1

    2

    3

    1 yyyedyxed

    ( ) ( ) ==

    +

    12 22

    3

    123

    22

    2

    yyxed

    ( )( )

    ( )( )

    ===

    22

    223

    222

    223

    2 22

    1

    23

    122

    1

    23

    1

    222

    3

    3

    122

    3

    1 yyyyedyedxedxedx

    ( )( ) ( )( ) ( ) ( ) 323

    3

    2

    3

    2

    222

    1

    2

    3

    3

    122

    2

    1

    2

    3

    3

    122

    2

    3

    3

    1 23

    223

    2

    === yy

    edyedx

    ( ) ( )( )

    =

    =

    +

    6

    321

    2

    2

    1

    4

    822

    3

    123

    22

    2

    yyxed

    ( )( ) ( )

    = +++=

    +

    01

    22

    232

    442

    22 1

    44414

    kx

    kaaa

    axae

    xdxa

    ; (135)

    ( ) ( )

    +21

    223

    22

    2 22

    1

    1

    2

    3

    1 yyyedyxed

    ( ) ( ) ==

    +

    12 22

    3

    123

    22

    2

    yyxed

    ( )( )

    ( )( )

    ===

    22

    223

    222

    223

    2 22

    1

    23

    122

    1

    23

    1

    222

    3

    3

    122

    3

    1 yyyyedyedxedxedx

    ( )( ) ( )( ) ( ) ( )3

    2

    3

    3

    2

    3

    2

    2221

    23

    3122

    21

    23

    3122

    23

    31

    2

    3

    22

    3

    2

    === yy edyedx

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    26

    ( ) ( )( )

    =

    =

    +

    6

    321

    2

    2

    1

    4822

    3

    123

    22

    2

    yyxed

    ( )( ) ( )( )

    ( ) ( ) ( ){ }( ) ( ){ }

    =

    +

    ++

    +=

    +

    00

    122

    32

    2/12cosh12

    12cos12

    4coscosh

    2sin

    k

    nkk

    kk

    nke

    xxx

    dxnx

    ; (136)

    ( ) ( )

    +21

    223

    22

    2 22

    1

    1

    2

    3

    1 yyyedyxed

    ( ) ( ) ==

    +

    12 22

    3

    123

    22

    2

    yyxed

    ( )( )

    ( )( )

    ===

    22

    223

    222

    223

    2 22

    1

    23

    122

    1

    23

    1

    222

    3

    3

    122

    3

    1 yyyyedyedxedxedx

    ( )( ) ( )( ) ( ) ( ) 323

    3

    2

    3

    2

    222

    1

    2

    3

    3

    122

    2

    1

    2

    3

    3

    122

    2

    3

    3

    1 23

    223

    2

    === yy

    edyedx

    ( ) ( )( )

    =

    =

    +

    6

    321

    2

    2

    1

    4

    822

    3

    123

    22

    2

    yyxed

    ++

    =1

    0

    2

    411log

    4

    15dx

    x

    x

    I ( )( )

    412

    log

    4

    15 32/15

    1 2

    =

    =

    +

    duuuu

    u; (137)

    ( ) ( )

    +21

    223

    22

    2 22

    1

    1

    2

    3

    1 yyyedyxed

    ( ) ( ) ==

    +

    12 22

    3

    123

    22

    2

    yyxed

    ( )( )

    ( )( )

    ===

    22

    223

    222

    223

    2 22

    1

    23

    122

    1

    23

    1

    222

    3

    3

    122

    3

    1 yyyyedyedxedxedx

    ( )( ) ( )( ) ( ) ( ) 323

    3

    2

    3

    2

    222

    1

    2

    3

    3

    122

    2

    1

    2

    3

    3

    122

    2

    3

    3

    1 23

    223

    2

    === yy

    edyedx

    ( ) ( )( )

    =

    =

    +

    6

    321

    2

    2

    1

    4822

    3

    123

    22

    2

    yyxed

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx ; (138)

    ( ) ( )

    +21

    22

    3

    2

    2

    2 2

    2

    1

    1

    2

    3

    1 yyyedyxed

    ( )

    ( ) ==

    +1

    2

    223

    123

    2

    2

    2

    yy

    xed

    ( )( )

    ( )( )

    ===

    22

    223

    222

    223

    2 22

    1

    23

    122

    1

    23

    1

    222

    3

    3

    122

    3

    1 yyyyedyedxedxedx

    ( )( ) ( )( ) ( ) ( ) 323

    3

    2

    3

    2

    222

    1

    2

    3

    3

    122

    2

    1

    2

    3

    3

    122

    2

    3

    3

    1 23

    223

    2

    === yy

    edyedx

    ( ) ( )( )

    =

    =

    +

    6

    321

    2

    2

    1

    4822

    3

    123

    22

    2

    yyxed

    +++=

    +

    8

    5

    8

    5

    8

    1

    2

    5

    2

    3

    42

    1

    16

    1

    1

    2cos

    1

    2cos 2323

    0 0 2

    2

    2

    3

    dxe

    xxdxe

    xxxx . (139)

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    27

    ( ) ( )( )

    ( )=

    +++++

    ++

    25

    32

    326315214

    2

    33

    2

    22

    2

    11

    22

    1

    3

    16

    81

    4

    23

    22

    21

    2

    yyByyByyByByByBxed

    yyy

    ( )( ) ( )

    = +++=

    +

    01

    22

    232

    442

    22 1

    44414

    kx

    kaaa

    axae

    xdxa

    ; (140)

    ( ) ( )( )

    ( )=

    +++++

    ++

    25

    32

    326315214

    2

    33

    2

    22

    2

    11

    22

    1

    3

    16

    81

    4

    23

    22

    21

    2

    yyByyByyByByByBxed

    yyy

    ( )( ) ( )( )

    ( ) ( ) ( ){ }( ) ( ){ }

    =

    +

    ++

    +=

    +

    00

    122

    32

    2/12cosh12

    12cos12

    4coscosh

    2sin

    k

    nkk

    kk

    nke

    xxx

    dxnx

    ; (141)

    ( ) ( )( )

    ( )=

    +++++

    ++

    25

    32

    326315214

    2

    33

    2

    22

    2

    11

    22

    1

    3

    16

    81

    4

    23

    22

    21

    2

    yyByyByyByByByBxed

    yyy

    ++

    =1

    0

    2

    411log

    4

    15dx

    x

    x

    I ( )( )

    412

    log

    4

    15 32/15

    1 2

    =

    =

    +

    duuuu

    u; (142)

    ( ) ( )( )

    ( )=

    +++++

    ++

    25

    32

    326315214

    2

    33

    2

    22

    2

    11

    22

    1

    3

    16

    81

    4

    23

    22

    21

    2

    yyByyByyByByByBxed

    yyy

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx ; (143)

    ( ) ( )( )

    ( )=

    +++++

    ++

    25

    32

    326315214

    2

    33

    2

    22

    2

    11

    22

    1

    3

    16

    81

    4

    23

    22

    21

    2

    yyByyByyByByByBxed

    yyy

    +++=

    +

    8

    5

    8

    5

    8

    1

    2

    5

    2

    3

    42

    1

    16

    1

    1

    2cos

    1

    2cos 2323

    0 0 2

    2

    2

    3dx

    e

    xxdx

    e

    xxxx

    . (144)

    Thence, mathematical connections with the Ramanujans identities concerning , precisely4

    3.

    3.2Zeta Strings [8]The exact tree-level Lagrangian for effective scalar field which describes open p-adic stringtachyon is

    ++

    =

    +

    12

    2

    2 1

    1

    2

    1

    1

    1 pp

    pp

    p

    p

    g

    L

    , (145)

    wherep

    is any prime number,

    22+= t

    is the D-dimensional dAlambertian and we adoptmetric with signature ( )++ ... . Now, we want to show a model which incorporates the p-adicstring Lagrangians in a restricted adelic way. Let us take the following Lagrangian

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    28

    +

    ++=

    ==

    1 1 1 1

    1222 1

    1

    2

    111

    n n n n

    n

    nnnn

    ngn

    nCL

    LL

    . (146)

    Recall that the Riemann zeta function is defined as

    ( )

    ==1 1

    11

    n pss

    pns

    , is += , 1> . (147)

    Employing usual expansion for the logarithmic function and definition (147) we can rewrite (146)

    in the form

    ( )

    ++

    = 1ln

    22

    112

    gL

    , (148)

    where1= 2220

    2kkkr

    , (149)

    where( ) ( ) ( )dxxek ikx

    =

    ~

    is the Fourier transform of ( )x .

    Dynamics of this field

    is encoded in the (pseudo)differential form of the Riemann zeta function.When the dAlambertian is an argument of the Riemann zeta function we shall call such string a

    zeta string. Consequently, the above is an open scalar zeta string. The equation of motion for

    the zeta string is

    ( )( ) +> =

    =

    2

    2

    220 1

    ~

    22

    1

    2 kkixk

    Ddkk

    ker

    (150)

    which has an evident solution 0= .

    For the case of time dependent spatially homogeneous solutions, we have the following equation ofmotion

    ( )( )

    ( )( )

    ( )tt

    dkkk

    etk

    tikt

    =

    =

    +>

    1

    ~

    22

    1

    200

    2

    0

    2

    2

    0

    0

    . (151)

    With regard the open and closed scalar zeta strings, the equations of motion are

    ( )( )

    ( )

    =

    =

    n

    n

    nn

    ixk

    Ddkk

    ke

    1

    2

    12 ~

    22

    1

    2

    , (152)

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    29

    ( )( )

    ( )( )

    ( )

    ( )

    +

    +

    +=

    =

    1

    11

    2

    12

    112

    1~

    42

    1

    4

    2

    n

    n

    nn

    nixk

    Dn

    nndkk

    ke

    , (153)

    and one can easily see trivial solution 0== .

    With regard the Section 3, we have the following mathematical connection between the eq. (54b)

    and the eq. (150):

    ( )( ) +> =

    =

    2

    2

    220 1

    ~

    22

    1

    2 kkixk

    Ddkk

    ker

    ( )( )

    =

    =

    0

    1

    1

    2

    2

    x

    d

    d

    dd

    e

    xdx

    SVolpT

    ( )( )( )

    ( )

    d

    ddd

    Td

    ddp

    2/12

    2/1

    2

    12

    !1

    2

    21

    . (154)

    With regard the Section 4, we have the following mathematical connections between the eqs. (74)

    and (77) and the eqs. (150):

    ( )

    =

    LlatZ

    dI

    F2

    2

    2

    1

    3

    4

    4 ( ) ( ) ( ) +

    +

    12121

    2

    2122/5

    2/5

    0,0 2

    12

    3

    2

    2

    3

    2 254

    362

    mim

    mm

    emmKm

    m

    ( )

    ( ) +> =

    =

    2

    2

    220 1

    ~

    22

    1

    2 kkixk

    Ddkk

    ker

    ; (155)

    ( ) ( ) ( ) ( ) ( ) ( )( ) ( )

    +=

    =

    +

    2/1

    2/1 00,0,

    ,2

    32

    2

    3

    23

    ,2

    32

    2

    212

    3

    1 ,4

    5362

    2,

    2

    22

    2

    pj

    ZSLpUj

    U

    T

    ZSLUUE

    TTeE

    ddVI

    ( )

    ( ) +> =

    =

    2

    2

    220 1

    ~

    22

    1

    2 kkixk

    Ddkk

    ker

    . (156)

    In conclusion, multiplying for 6

    8

    1 the eq. (77), we obtain the following equivalent equation:

    ( )( )

    ( )

    ( )

    ( )( )

    ( ) ( )

    +

    +=

    =

    2/1

    2/1 00,0,

    ,2

    322

    3

    2

    3,2

    322

    2

    12

    63

    1 ,4

    53

    624,8

    12

    22

    2

    pj

    ZSLpUj

    U

    T

    ZSL

    UUETTeE

    d

    dVI

    (157)

    This equation can be related with the expression (138) and with the eq. (150), giving the following

    interesting complete mathematical connections:

    ( ) ( ) ( ) ( ) ( ) ( )( ) ( )

    +=

    =

    +

    2/1

    2/1 00,0,

    ,2

    32

    2

    3

    2

    3,2

    32

    2

    212

    63

    1 ,4

    5362

    4,

    8

    12

    22

    2

    pj

    ZSLpUj

    U

    T

    ZSLUUE

    TTeE

    ddVI

    ( ) ( )

    +21

    223

    22

    2 22

    1

    1

    2

    3

    1 yyyedyxed

    ( ) ( ) ==

    +

    12 22

    3

    123

    22

    2

    yyxed

    ( )( )

    ( )( )

    ===

    22

    223

    222

    223

    2 22

    1

    23

    122

    1

    23

    1

    222

    3

    3

    122

    3

    1 yyyyedyedxedxedx

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    30/30

    ( )( ) ( )( ) ( ) ( ) 323

    3

    2

    3

    2

    222

    1

    2

    3

    3

    122

    2

    1

    2

    3

    3

    122

    2

    3

    3

    1 23

    223

    2

    === yy

    edyedx

    ( ) ( )( )

    =

    =

    +

    6

    321

    2

    2

    1

    4822

    3

    123

    22

    2

    yyxed

    +=

    +

    2

    3

    0 0

    23

    233 3

    416

    1

    sinh

    sin

    sinh

    cos

    dx

    x

    xxdx

    x

    xx

    ( )( ) +> =

    =

    2

    2

    220 1

    ~

    22

    1

    2 kkixk

    Ddkk

    ker

    . (158)

    Acknowledgments

    I would like to thank Prof. Branko Dragovich of Institute of Physics of Belgrade (Serbia) for his

    availability and friendship. Ild like to thank Prof. Jorma Jormakka of Department of Military

    Technology, National Defence University, Helsinki, for his availability. In conclusion, Ild like to

    thank also Dr. Pasquale Cutolo for his important and useful work of review and his kind advices.

    References

    [1] David J. Toms Quantum gravitational contributions to quantum electrodynamics arXiv:

    1010.0793v1 [hep-th] 5 Oct 2010

    [2] Yong Tang and Yue-Liang Wu Gravitational Contributions to the Running of Gauge

    Couplings arXiv:0807.0331v2 [hep-ph] 10 Dec 2008

    [3] Sean Patrick Robinson Two Quantum Effects in the Theory of Gravitation Massachusetts

    Institute of Technology June 2005

    [4] Edward Witten Supersymmetric Yang-Mills Theory on a four-manifold arXiv:hep-th/

    9403195v1 31 Mar 1994;

    Massimo Bianchi and Stefano Kovacs Yang-Mills Instantons vs. type IIB D-instantons

    arXiv:hep-th/9811060v2 27 Nov 1998;Anirbau Basu The

    46RD term in type IIB string theory on

    2T and U-duality arXiv:0712.

    1252v1 [hep-th] 8 Dec 2007

    [5] Jorma Jormakka Solutions to Yang-Mills Equations arXiv:1011.3962v2 [math.GM]

    15 Nov 2010 - http://arxiv.org/PS_cache/arxiv/pdf/1011/1011.3962v2.pdf

    [6] Bruce C. Berndt, Heng Huat Chan, Sen-Shan Huang Incomplete Elliptic Integrals in

    Ramanujans Lost Notebook - American Mathematical Society, Providence, RI, 2000, pp. 79-

    126.

    [7] Bruce C. Berndt Ramanujans Notebook Part IV Springer-Verlag (1994).