Published November 7, 2004
| Version v1
Journal article
Cosmological dynamics of scalar fields with O(N) symmetry
Creators
- 1. Shanghai United Center for Astrophysics (SUCA), Shanghai Normal University, Shanghai 200234 (China)
Description
In this paper, we study the cosmological dynamics of scalar fields with O(N) symmetry in general potentials. We compare the phase space of the dynamical systems of the quintessence and phantom and give the conditions for the existence of various attractors as well as their cosmological implications. We also show that the existence of a tracking attractor in O(N) phantom models requires the potential with Γ < 1/2, which makes the model with exponential potential possess no tracking attractor
Availability note (English)
Available online at http://stacks.iop.org/0264-9381/21/4771/cqg4_21_001.pdf or at the Web site for the journal Classical and Quantum Gravity (ISSN 1361-6382) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0264-9381/21/4771/cqg4_21_001.pdf; http://www.iop.org/;
- DOI
- 10.1088/0264-9381/21/21/001;
- PII
- S0264-9381(04)81713-1;
Publishing Information
- Journal Title
- Classical and Quantum Gravity
- Journal Volume
- 21
- Journal Issue
- 21
- Journal Page Range
- p. 4771-4779
- ISSN
- 0264-9381
- CODEN
- CQGRDG
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36029383
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ATTRACTORS; NONLUMINOUS MATTER; O GROUPS; PHASE SPACE; SCALAR FIELDS
- Descriptors DEC
- DYNAMICAL GROUPS; LIE GROUPS; MATHEMATICAL SPACE; MATTER; SPACE; SYMMETRY GROUPS