Work

Semiclassical gravitational effects in de Sitter space at finite temperature

Year: 1995

Type: article

Abstract: In the framework of finite-temperature conformal scalar field theory on de Sitter spacetime the linearized Einstein equations for the renormalized stress tensor are solved exactly. In this theory quantum field fluctuations are concentrated near two spheres of the de Sitter radius, propagating as light wavefronts. The analysis, performed for a flat expanding universe, shows exponential damping of the back-reaction effects far from these spherical objects. The solutions obtained for the semiclassical Einstein equations in a de Sitter background can also be extended straightforwardly to the anti-de-Sitter geometry.

Source: Classical and Quantum Gravity

DOI: 10.1088/0264-9381/12/2/008

Authors: D V Fursaev, G Miele

Institutions: Joint Institute for Nuclear Research, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, University of Naples Federico II

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2021504151

FWCI: 0.787

Cites: 16

Cited by: 5

Related to: 10