Work

Backreaction Problem for Cosmological Perturbations

Year: 1997

Type: article

Abstract: We derive the effective energy-momentum tensor for cosmological perturbations and prove its gauge invariance. The result is applied to study the influence of perturbations on the behavior of the Friedmann background in inflationary universe scenarios. We found that the back reaction of cosmological perturbations on the background can become important already at energies below the self-reproduction scale.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.78.1624

Authors: V. F. Mukhanov, L. Raul W. Abramo, Robert H. Brandenberger

Institutions: ETH Zurich, Institute for Theoretical Physics, Brown University

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Conselho Nacional de Desenvolvimento Científico e Tecnológico

Awards: U.S.-Switzerland Cooperative Research on Issues in Gravitation and Cosmology, A HIGH SPEED DATA ACQUISITION SUBSYSTEM FOR SCC