Published December 30, 2002
| Version v1
Journal article
Topological defects in contracting universes
- 1. Centro de Fisica do Porto e Departamento de Fisica da Faculdade de Ciencias, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto (Portugal)
- 2. Institut d'Astrophysique de Paris, 98 bis Boulevard Arago, 75014 Paris (France)
- 3. Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
- 4. Centro de Astrofisica da Universidade do Porto, Rua das Estrelas, s/n, 4150-762, Porto (Portugal)
Description
We study the behavior and consequences of cosmic string networks in contracting universes. They approximately behave during the collapse phase as radiation fluids. Scaling solutions describing this are derived and tested against high-resolution numerical simulations. A string network in a contracting universe, together with the gravitational radiation it generates, can affect the dynamics of the universe both locally and globally and be an important source of radiation, entropy, and inhomogeneity. We discuss possible implications for bouncing and cyclic models
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 89
- Journal Issue
- 27
- Journal Page Range
- p. 271301-271301.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35030358
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COSMOLOGICAL MODELS; COSMOLOGY; ENTROPY; GRAVITATIONAL WAVES; QUANTUM FIELD THEORY; STRING MODELS; TOPOLOGY; UNIVERSE
- Descriptors DEC
- COMPOSITE MODELS; EXTENDED PARTICLE MODEL; FIELD THEORIES; MATHEMATICAL MODELS; MATHEMATICS; PARTICLE MODELS; PHYSICAL PROPERTIES; QUARK MODEL; THERMODYNAMIC PROPERTIES
Optional Information
- Notes
- (c) 2002 The American Physical Society