Self-consistent solutions of the semi-classical Einstein equations with cosmological constant and perfect fluid

Details Self-consistent solutions of the semi-classical Einstein equations with cosmological constant and perfect fluid Self-consistent solutions of the semi-classical Einstein equations with cosmological constant and perfect fluid

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.201..341c&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 201, no. 2, p. 341-345.

Astronomy and Astrophysics

Astrophysics

4

Cosmology, Einstein Equations, Ideal Fluids, Cosmic Dust, Gravitational Effects, Perturbation Theory

Scientific paper

Exact solutions of the semiclassical Einstein equations with cosmological constant for conformally invariant free quantum fields in a spatially flat Robertson-Walker metric are found when a classical perfect fluid is present. The stability of the asymptotically Friedmann-de Sitter solutions is studied. The former are found to be stable if alpha is less than 0, while the stability of the latter depends of the signs of alpha, beta, and Lambda.

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