Renormalized Stress Tensor for trans-Planckian Cosmology

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dc.creatorNacir, D. Lopez
dc.creatorMazzitelli, F. D.
dc.creatorSimeone, C.
dc.date2005-11-09
dc.date2005-12-16
dc.date.accessioned2026-07-07T06:49:41Z
dc.date.available2026-07-07T06:49:41Z
dc.descriptionFinite expressions for the mean value of the stress tensor corresponding to a scalar field with a generalized dispersion relation in a Friedman--Robertson--Walker universe are obtained using adiabatic renormalization. Formally divergent integrals are evaluated by means of dimensional regularization. The renormalization procedure is shown to be equivalent to a redefinition of the cosmological constant and the Newton constant in the semiclassical Einstein equations.
dc.description14 pages. Minor changes; version published in Physical Review D
dc.identifierhttps://arxiv.org/abs/gr-qc/0511046
dc.identifierhttp://arxiv.org/abs/gr-qc/0511046
dc.identifierPhys.Rev. D72 (2005) 124013
dc.identifierdoi:10.1103/PhysRevD.72.124013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104443
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleRenormalized Stress Tensor for trans-Planckian Cosmology
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