Inflation and nonequilibrium renormalization group

2006/11/27 by Juan Zanella, Esteban Calzetta · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Fluctuation spectrum #Inflation (cosmology) #Inflaton #Non-equilibrium thermodynamics #Renormalization group #Scale (ratio) #Spectrum (functional analysis) #Statistical Mechanics and Entropy #hep-ph

paper · pdf · doi:10.1088/1751-8113/40/25/s58

published as J.Phys.A40:7037-7041,2007 · 6 pages, 1 figure, submitted to J. Phys. A

arxiv created 2006/11/27 · openalex publication_date 2007/06/06 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study the spectrum of primordial fluctuations and the scale dependence of the inflaton spectral index due to self-interactions of the field. We compute the spectrum of fluctuations by applying nonequilibrium renormalization group techniques.

Citations

• The renormalization group and the ε expansion
• The influence of super-horizon scales on cosmological observables generated during inflation
• The running spectral index as a probe of physics at high scales

Cited by

• A nonequilibrium renormalization group approach to turbulent reheating