Post on 16-Feb-2016
description
LOCAL NON-GAUSSIANITY FROM RAPIDLY
VARYING SOUND SPEEDSJON EMERY WITH GIANMASSIMO TASINATO AND DAVID WANDS
ARXIV:1203.6625 - JCAP08(2012)005
COSMO12 – 13/9/2012
INTRODUCTION
INFLATION AND NON-GAUSSIANITY
BREAKING THE DEGENERACIES
MULTIPLE-DBI INFLATION
AFFECT OF MULTIPLE SOUND SPEEDS ON LOCAL TYPE NON-GAUSSIANITY
COSMO12 – 13/9/2012
INFLATION AND NON-GAUSSIANITY
COSMO12 – 13/9/2012KOMATSU ET AL. (2008)
INFLATION AND NON-GAUSSIANITY
COSMO12 – 13/9/2012KOMATSU ET AL. (2008)
INFLATION AND NON-GAUSSIANITY
COSMO12 – 13/9/2012KOMATSU ET AL. (2008)
EXAMPLE: TWO FIELD INFLATION
INFLATION AND NON-GAUSSIANITY
COSMO12 – 13/9/2012
BYRNES AND TASINATO (2008)
INFLATION AND NON-GAUSSIANITYEXAMPLE: DBI INFLATION
COSMO12 – 13/9/2012
6D CALABI-YAU
ALISHAHIHA, SILVERSTEIN AND
TONG (2004)
INFLATION AND NON-GAUSSIANITY
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PROBLEM: DEGENERACY
COSMO12 – 13/9/2012
INFLATION AND NON-GAUSSIANITY
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PROBLEM: DEGENERACY
COSMO12 – 13/9/2012
fNL
PLANCK:
WMAP:
INFLATION AND NON-GAUSSIANITY
COSMO12 – 13/9/2012
INFLATION AND NON-GAUSSIANITY
VANILLA MULTIPLE FIELDS
NON-CANONICAL
COSMO12 – 13/9/2012
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
VANILLA MULTIPLE FIELDS
NON-CANONICAL
MULTIPLE FIELDS
NON-CANONICAL
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
VANILLA
CHOOSE A MODEL: TWO FIELD
DBI
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
BACKGROUND: HAMILTON-JACOBI
SAME SOUND SPEEDS AT HORIZON CROSSING
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
PERTURBATIONS: DELTA N AND SEPARABLE HUBBLE
MULTIPLE-DBI INFLATION
BYRNES & TASINATO (2009)
VERNIZZI & WANDS (2006)
COSMO12 – 13/9/2012
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
RESULTS: ANALYTICAL EXPRESSION
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
RESULTS: ANALYTICAL EXPRESSION
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
RESULTS: ANALYTICAL EXPRESSION
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
RESULTS: ANALYTICAL EXPRESSION
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012BYRNES & TASINATO (2009)
RESULTS: ANALYTICAL EXPRESSION
MULTIPLE-DBI INFLATION
BYRNES & TASINATO (2009)COSMO12 – 13/9/2012
RESULTS: ANALYTICAL EXPRESSION
MULTIPLE-DBI INFLATION
WARP FACTORSCOSMO12 – 13/9/2012
RESULTS: INFLATION IN TWO CUT-OFF THROATS
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
TRAJECTORIES
RESULTS: INFLATION IN TWO CUT-OFF THROATS
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012SOUND SPEEDS
RESULTS: INFLATION IN TWO CUT-OFF THROATS
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012NON-LINEARITY PARAMETER
RESULTS: INFLATION IN TWO CUT-OFF THROATS
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
THIRD ORDER ACTION
PATH INTEGRAL FORMALISM
PROGRESS: EQUILATERAL CONTRIBUTION
SEERY & LYDSEY (2005)
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
EQUILATERAL NON-LINEARITY PARAMETER
PROGRESS: EQUILATERAL CONTRIBUTION
MULTIPLE-DBI INFLATION
COSMO12 – 13/9/2012
EQUILATERAL NON-LINEARITY PARAMETER
PROGRESS: EQUILATERAL CONTRIBUTION
CONCLUSIONS
COSMO12 – 13/9/2012
INFLATION AND NON-GAUSSIANITY
BREAKS THE DEGENERACIES OF REALISTIC MODELS
MULTIPLE-DBI INFLATION
RAPIDLY VARYING SOUND SPEEDS CAN PRODUCE
LARGE LOCAL TYPE NON-GAUSSIANITY