Published December 15, 2005
| Version v1
Journal article
Renormalized stress tensor for trans-Planckian cosmology
- 1. Departamento de Fisica Juan Jose Giambiagi, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Pabellon I, 1428 Buenos Aires (Argentina)
Description
Finite expressions for the mean value of the stress tensor corresponding to a scalar field with a generalized dispersion relation in a Friedmann-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
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.72.124013;
- arXiv
- arXiv:gr-qc/0511046v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 72
- Journal Issue
- 12
- Journal Page Range
- p. 124013-124013.10
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37078105
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- COSMIC RADIATION; COSMOLOGICAL CONSTANT; COSMOLOGY; DISPERSION RELATIONS; EINSTEIN FIELD EQUATIONS; RADIOWAVE RADIATION; RELICT RADIATION; RENORMALIZATION; SCALAR FIELDS; SEMICLASSICAL APPROXIMATION; STRESSES; TENSORS; UNIVERSE
- Descriptors DEC
- APPROXIMATIONS; CALCULATION METHODS; ELECTROMAGNETIC RADIATION; EQUATIONS; FIELD EQUATIONS; IONIZING RADIATIONS; MICROWAVE RADIATION; RADIATIONS
Optional Information
- Notes
- (c) 2005 The American Physical Society