Baryon asymmetry, inflation and squeezed states

We use the general formalism of squeezed rotated states to calculate baryon asymmetry in the wake of inflation through parametric amplification. We base our analysis on a B and CP violating Lagrangian in an isotropically expanding universe. The B and CP violating terms originate from the coupling of...

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Bibliographic Details
Published inAnnals of physics Vol. 322; no. 4; pp. 849 - 865
Main Authors Bambah, Bindu A., Chaitanya, K.V.S. Shiv, Mukku, C.
Format Journal Article
LanguageEnglish
Published New York Elsevier Inc 01.04.2007
Elsevier BV
Subjects
ANTIPARTICLES
ASYMMETRY
BARYON NUMBER
BARYONS
CP INVARIANCE
EXCITED STATES
INFLATIONARY UNIVERSE
LAGRANGIAN FUNCTION
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
UNIVERSE
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Summary:We use the general formalism of squeezed rotated states to calculate baryon asymmetry in the wake of inflation through parametric amplification. We base our analysis on a B and CP violating Lagrangian in an isotropically expanding universe. The B and CP violating terms originate from the coupling of complex fields with non-zero baryon number to a complex background inflaton field. We show that a differential amplification of particle and antiparticle modes gives rise to baryon asymmetry.
ISSN:0003-4916
1096-035X
DOI:10.1016/j.aop.2006.08.005