The Hubble Effective Potential

Details The Hubble Effective Potential The Hubble Effective Potential

2009-04-07

arxiv.org/abs/0904.1151v2

JCAP 0905:003,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

32 pages, 6 figures, version 2 published in JCAP with some typoes corrected and two additional references

Scientific paper

10.1088/1475-7516/2009/05/003

We generalize the effective potential to scalar field configurations which are proportional to the Hubble parameter of a homogeneous and isotropic background geometry. This may be useful in situations for which curvature effects are significant. We evaluate the one loop contribution to the Hubble Effective Potential for a massless scalar with arbitrary conformal and quartic couplings, on a background for which the deceleration parameter is constant. Among other things, we find that inflationary particle production leads to symmetry restoration at late times.

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