SELF-CONSISTENT SOLUTIONS OF THE SEMICLASSICAL EINSTEIN EQUATIONS WITH COSMOLOGICAL CONSTANT AND PERFECT FLUID

Authors
CHIMENTO LP ZUCCALA NA
Citation
Lp. Chimento et Na. Zuccala, SELF-CONSISTENT SOLUTIONS OF THE SEMICLASSICAL EINSTEIN EQUATIONS WITH COSMOLOGICAL CONSTANT AND PERFECT FLUID, Astrophysics and space science, 201(2), 1993, pp. 341-345
Citations number
14
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysics and space science → ACNP
ISSN journal
0004640X
Volume
201
Issue
2
Year of publication
1993
Pages
341 - 345
Database
ISI
SICI code
0004-640X(1993)201:2<341:SSOTSE>2.0.ZU;2-Y
Abstract
Exact solutions of the semi-classical Einstein equations with cosmolog ical constant for conformally invariant free quantum fields in aa spat ially flat Robertson-Walker metric are found when aa classical perfect fluid is present. The stability of the asymptotically Friedmann-de Si tter solutions is studied. The formers are found to be stable if alpha < 0, while the stability of the latter depends of the signs of alpha, beta, and LAMBDA.