Imprints of short distance physics on inflationary cosmology

2001/10/31 by Richard Easther, Brian R. Greene, Brian Greene +2 · 4 citations
Mathematics · Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Inflation (cosmology) #Mathematics #Observable #Particle physics #Perturbation (astronomy) #Perturbation theory (quantum mechanics) #Physics #Power law #Quantum mechanics #Spectral density #Spectrum (functional analysis) #Statistical physics #Statistics #Theoretical physics #astro-ph #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.67.063508

published as Phys.Rev. D67 (2003) 063508 · Revtex 4, 3 eps figs, 4 pages

arxiv created 2002/04/16 · openalex publication_date 2003/03/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We analyze the impact of certain modifications to short distance physics on the inflationary perturbation spectrum. For the specific case of power-law inflation, we find distinctive---and possibly observable---effects on the spectrum of density perturbations.

Citations

• Trans-Planckian dispersion and scale invariance of inflationary perturbations
• The development of irregularities in a single bubble inflationary universe
• Short distance physics and the consistency relation for scalar and tensor fluctuations in the inflationary universe
• Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations
• String theory beyond the Planck scale
• On the LambertW function
• The Hierarchy Problem and New Dimensions at a Millimeter
• Spontaneous creation of almost scale-free density perturbations in an inflationary universe
• Fluctuations in the New Inflationary Universe
• Trans-Planckian problem of inflationary cosmology

Cited by

• Primordial non-Gaussianities in single field inflationary models with non-trivial initial states
• Decoupling in an expanding universe: backreaction barely constrains short distance effects in the cosmic microwave background
• Higher order corrections to asymptotic-de Sitter inflation
• Short distance and initial state effects in inflation: Stress tensor and decoherence