Work

Uniqueness of current cosmic acceleration

Year: 2010

Type: article

Abstract: One of the strongest arguments against the cosmological constant as an explanation of the current epoch of accelerated cosmic expansion is the existence of an earlier, dynamical acceleration, i.e. inflation. We examine the likelihood that acceleration is an occasional phenomenon, putting stringent limits on the length of any accelerating epoch due to minimally coupled dark energy between recombination and the recent acceleration; such an epoch must last less than 0.05 e-fold (at $z>2$) or the matter power spectrum is modified by more than 20%.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.82.063514

Author: Eric V. Linder

Institutions: Ewha Womans University, Lawrence Berkeley National Laboratory, University of California, Berkeley

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2090286004

FWCI: 2.15

Cites: 16

Cited by: 15

Related to: 10