Can nonadiabatic perturbations arise after single-field inflation?

2004/01/31 by Steven Weinberg · 46 citations
Mathematics · Physics and Astronomy · #Classical mechanics #Cosmology and Gravitation Theories #Field (mathematics) #Galaxies: Formation, Evolution, Phenomena #Geometry #Inflation (cosmology) #Inflaton #Mathematics #Perturbation (astronomy) #Physics #Quantum electrodynamics #Quantum mechanics #Scalar (mathematics) #Scalar field #Solar and Space Plasma Dynamics #Theoretical physics #astro-ph #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.70.043541

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 70(4) (American Physical Society) · 7 pages, Latex, references added, discussion improved

arxiv created 2004/05/18 · openalex publication_date 2004/08/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

It is shown that non-adiabatic cosmological perturbations cannot appear during the period of reheating following inflation with a single scalar inflaton field. 1 Electronic address:

Citations

• The development of irregularities in a single bubble inflationary universe
• Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations
• Adiabatic modes in cosmology
• Spontaneous creation of almost scale-free density perturbations in an inflationary universe
• Fluctuations in the New Inflationary Universe

Cited by

• Primordial perturbations in Einstein-Aether and BPSH theories