Conformally flat universe as quantum back reaction of dilaton-coupled matter

Details Conformally flat universe as quantum back reaction of dilaton-coupled matter Conformally flat universe as quantum back reaction of dilaton-coupled matter

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999el.....46..268o&link_type=abstract

Europhysics Letters, Volume 46, Issue 2, pp. 268-271 (1999).

Physics

1

Particle-Theory And Field-Theory Models Of The Early Universe, Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity

Scientific paper

Using anomaly-induced effective action for a dilaton-coupled 4D scalar matter we discuss quantum cosmological solutions for a conformally flat universe. Back reaction due to dilaton-coupled matter significantly changes the structure of solutions. In one particular case (of constant dilaton) we obtain an inflationary universe solution, but in general dilaton acts against the realizing of a non-singular universe.

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