An explicit time variable for cosmology and the matter-vacuum energy coincidence

Simple item page
dc.creatorBander, Myron
dc.date2002-05-01
dc.date.accessioned2026-07-07T03:26:50Z
dc.date.available2026-07-07T03:26:50Z
dc.descriptionBy allowing for non zero vacuum expectation values for some of the fields that appear in the Hamiltonian constraint of canonical general relativity a time variable, with usual properties, can be identified; the constraint plays the role of the ordinary Hamiltonian. The energy eigenvalues contribute to the variation of the scale parameter similarly to the way matter density does. For a universe described by a superposition of eigenstates or by a thermodynamic ensemble the dominant contribution comes from energy, or equivalently effective matter density, of the same order as the vacuum energy (cosmological constant). This may explain the observed ``coincidence'' of these two values.
dc.description5 pages REVTEX4
dc.identifierhttps://arxiv.org/abs/gr-qc/0205006
dc.identifierhttp://arxiv.org/abs/gr-qc/0205006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/34201
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleAn explicit time variable for cosmology and the matter-vacuum energy coincidence
dc.typetext

Files

Collections

arXiv