Dynamics of the quantum vacuum: Cosmology as relaxation to the equilibrium state
Abstract
The behavior of the gravitating vacuum energy density in an expanding universe is discussed. A scenario is presented with a stepwise 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.
 Publication:

Journal of Physics Conference Series
 Pub Date:
 September 2011
 DOI:
 10.1088/17426596/314/1/012004
 arXiv:
 arXiv:1102.3152
 Bibcode:
 2011JPhCS.314a2004K
 Keywords:

 General Relativity and Quantum Cosmology;
 Astrophysics  Cosmology and Extragalactic Astrophysics;
 High Energy Physics  Phenomenology
 EPrint:
 12 pages