Dynamics driven by the trace anomaly in FLRW universes

J.F. Koksma

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

By means of a semiclassical analysis we show that the trace anomaly does not affect the cosmological constant. We calculate the evolution of the Hubble parameter in quasi de Sitter spacetime, where the Hubble parameter varies slowly in time, and in FLRW spacetimes. We show dynamically that a Universe consisting of matter with a constant equation of state, a cosmological constant and the quantum trace anomaly evolves either to the classical de Sitter attractor or to a quantum trace anomaly driven one. There is no dynamical effect that influences the effective value of the cosmological constant
Original languageEnglish
Title of host publicationAIP Conference proceedings
PublisherAmerican Institute of Physics
Pages967-972
Number of pages6
Publication statusPublished - 29 Jun 2009

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