Published April 1, 2006
| Version v1
Journal article
Transport coefficients from the 2PI effective action: weak coupling and large N analysis
Creators
- 1. Department of Physics, University of Wales Swansea Singleton Park, Swansea, SA2 8PP (United Kingdom)
- 2. Department of Physics and Astronomy, Brandon University Brandon, Manitoba R7A 6A9 (Canada)
Description
The diagrammatic computation of transport coefficients in relativistic field theories is discussed. We show that the lowest nontrivial truncation of the two-particle irreducible (2PI) effective action correctly determines transport coefficients in a weak coupling or 1/N expansion at leading (logarithmic) order. In gauge theories, we verify gauge fixing independence and consistency with the Ward identity. These results support the applicability of 2PI effective action techniques to the study of nonequilibrium quantum-field dynamics
Availability note (English)
Available online at http://stacks.iop.org/1742-6596/35/414/jpconf6_35_039.pdf or at the Web site for the Journal of Physics. Conference Series (Online) (ISSN 1742-6596) http://www.iop.org/Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Physics. Conference Series (Online)
- Journal Volume
- 35
- Journal Issue
- 1
- Journal Page Range
- p. 414-419
- ISSN
- 1742-6596
Conference
- Title
- Interdisciplinary conference on progress in nonequilibrium Green's functions III
- Dates
- 22-26 Aug 2005
- Place
- Kiel (Germany)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37058419
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ACTION INTEGRAL; COUPLING; EXPANSION; GAUGE INVARIANCE; QUANTUM FIELD THEORY; RELATIVISTIC RANGE; WARD IDENTITY
- Descriptors DEC
- ENERGY RANGE; FIELD THEORIES; INTEGRALS; INVARIANCE PRINCIPLES