Dynamics driven by the Trace Anomaly in FLRW Universes

Journal Article · Wed Jun 23 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3462742· OSTI ID:21410210

Koksma, Jurjen F ^[1]

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1. Institute for Theoretical Physics (ITP) and Spinoza Institute, Utrecht University, Postbus 80195, 3508 TD Utrecht (Netherlands)

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.

• OSTI ID: 21410210
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1241; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
APPROXIMATIONS
ATTRACTORS
CALCULATION METHODS
COMPUTERIZED SIMULATION
COSMOLOGICAL CONSTANT
COSMOLOGY
DE SITTER SPACE
EQUATIONS
EQUATIONS OF STATE
FIELD THEORIES
GRAVITATION
MATHEMATICAL SPACE
MATTER
NONLUMINOUS MATTER
QUANTUM FIELD THEORY
SEMICLASSICAL APPROXIMATION
SIMULATION
SPACE
SPACE-TIME
UNIVERSE