Published May 15, 2011
| Version v1
Journal article
Cosmological constant in spinfoam cosmology
- 1. Centre de Physique Theorique de Luminy, Case 907, F-13288 Marseille (France)
- 2. Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, via A. Bassi 6, I-27100 Pavia (Italy)
- 3. Dipartimento di Fisica Nucleare e Teorica, Universita degli Studi di Pavia (Italy)
Description
We consider a simple modification of the amplitude defining the dynamics of loop quantum gravity, corresponding to the introduction of the cosmological constant, and possibly related to the SL(2,C)q extension of the theory recently considered by Fairbairn-Meusburger and Han. We show that, in the context of spinfoam cosmology, this modification yields the de Sitter cosmological solution.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.83.104015;
- arXiv
- arXiv:1101.4049v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 83
- Journal Issue
- 10
- Journal Page Range
- p. 104015-104015.4
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42094399
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- AMPLITUDES; COSMOLOGICAL CONSTANT; COSMOLOGICAL MODELS; COSMOLOGY; DE SITTER SPACE; MATHEMATICAL SOLUTIONS; MODIFICATIONS; QUANTUM GRAVITY
- Descriptors DEC
- FIELD THEORIES; MATHEMATICAL MODELS; MATHEMATICAL SPACE; QUANTUM FIELD THEORY; SPACE
Optional Information
- Notes
- (c) 2011 American Institute of Physics