Dynamics of the quantum vacuum: Cosmology as relaxation to the equilibrium state

Details Dynamics of the quantum vacuum: Cosmology as relaxation to the equilibrium state Dynamics of the quantum vacuum: Cosmology as relaxation to the equilibrium state

2011-02-15

arxiv.org/abs/1102.3152v4

J.Phys.Conf.Ser.314:012004,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages; contribution to the Proceedings of The Spanish Relativity Meeting (ERE2010); v4: published version but with larger f

Scientific paper

10.1088/1742-6596/314/1/012004

The behavior of the gravitating vacuum energy density in an expanding universe is discussed. A scenario is presented with a step-wise relaxation of the vacuum energy density. The vacuum energy density moves from plateau to plateau and follows, on average, the steadily decreasing matter energy density. The current plateau with a small positive value of the vacuum energy density (effective cosmological constant) may result from a still not equilibrated contribution of the light massive neutrinos to the quantum vacuum.

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