Quantum fields, cosmological constant and symmetry doubling

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dc.creatorElze, Hans-Thomas
dc.date2005-10-31
dc.date2007-03-13
dc.date.accessioned2026-07-07T11:27:18Z
dc.date.available2026-07-07T11:27:18Z
dc.descriptionEnergy-parity has been introduced by Kaplan and Sundrum as a protective symmetry that suppresses matter contributions to the cosmological constant [KS05]. It is shown here that this symmetry, schematically Energy --> - Energy, arises in the Hilbert space representation of the classical phase space dynamics of matter. Consistently with energy-parity and gauge symmetry, we generalize the Liouville operator and allow a varying gauge coupling, as in "varying alpha" or dilaton models. In this model, classical matter fields can dynamically turn into quantum fields (Schroedinger picture), accompanied by a gauge symmetry change -- presently, U(1) --> U(1) x U(1). The transition between classical ensemble theory and quantum field theory is governed by the varying coupling, in terms of a one-parameter deformation of either limit. These corrections introduce diffusion and dissipation, leading to decoherence.
dc.descriptionReplaced by published version, no change in contents - Int. J. Theor. Phys. (2007)
dc.identifierhttps://arxiv.org/abs/hep-th/0510267
dc.identifierhttp://arxiv.org/abs/hep-th/0510267
dc.identifierInt.J.Theor.Phys.46:2063-2081,2007
dc.identifierdoi:10.1007/s10773-006-9337-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196109
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectQuantum Physics
dc.titleQuantum fields, cosmological constant and symmetry doubling
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