2015/04/03 by Robert Brandenberger, Renato Costa, Guilherme Franzmann · 1 citation
Economics, Econometrics and Finance · Mathematics · Physics and Astronomy · #Back-reaction #Black Holes and Theoretical Physics #Classical mechanics #Cosmic microwave background #Cosmology and Gravitation Theories #Economics #Field (mathematics) #Geometry #Inflation (cosmology) #Inflaton #Keynesian economics #Mathematics #Physics #Primordial fluctuations #Quantum mechanics #Scalar (mathematics) #Scalar field #Stochastic processes and financial applications #Theoretical physics #astro-ph.CO #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.92.043517
published as Phys. Rev. D 92, 043517 (2015) · 8 pages, 2 figures
arxiv created 2015/04/03 · openalex publication_date 2015/08/25 · arxiv updated 2015/09/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the effects exerted by the backreaction of long-wavelength fluctuations on stochastic inflation. In the cases of power-law and Starobinsky inflation, these effects are too weak to terminate the stochastic growth of the inflaton field. However, in the case of the cyclic ekpyrotic scenario, the backreaction effects prevent the unlimited growth of the scalar field.