Self-tuning vacuum variable and cosmological constant

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dc.creatorKlinkhamer, F. R.
dc.creatorVolovik, G. E.
dc.date2007-11-20
dc.date2008-04-17
dc.date.accessioned2026-07-07T11:38:50Z
dc.date.available2026-07-07T11:38:50Z
dc.descriptionA spacetime-independent variable is introduced which characterizes a Lorentz-invariant self-sustained quantum vacuum. For a perfect (Lorentz-invariant) quantum vacuum, the self-tuning of this variable nullifies the effective energy density which enters the low-energy gravitational field equations. The observed small but nonzero value of the cosmological constant may then be explained as corresponding to the effective energy density of an imperfect quantum vacuum (perturbed by, e.g., the presence of thermal matter).
dc.description28 pages with revtex4; v6: preprint version of published paper with detailed references
dc.identifierhttps://arxiv.org/abs/0711.3170
dc.identifierhttp://arxiv.org/abs/0711.3170
dc.identifierPhys.Rev.D77:085015,2008
dc.identifierdoi:10.1103/PhysRevD.77.085015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199708
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleSelf-tuning vacuum variable and cosmological constant
dc.typetext

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