Published June 30, 1996
| Version v1
Journal article
Thermo field dynamics
Creators
- 1. Univ. of Alberta, Edmonton, Alberta (Canada)
- 2. Univ. of Wisconsin, Milwaukee, WI (United States). Dept. of Physics
Description
A quantum field theory at finite temperature is presented. The temperature dependent vacuum is defined such that the vacuum expectation value agrees with the statistical average. The vacuum states with different temperature are connected by a Bogoliubov transformation. The formalism allows the use of the Feynman diagrams for the causal Green's function and the Bethe-Salpeter technique for bound states at finite temperature. The entropy operator is introduced
Additional details
Publishing Information
- Journal Title
- International Journal of Modern Physics B
- Journal Volume
- 10
- Journal Issue
- 13-14
- Journal Page Range
- p. 1755-1805.
- ISSN
- 0217-9792
- CODEN
- IJPBEV
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28015215
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BETHE-SALPETER EQUATION; BOGOLYUBOV TRANSFORMATION; GREEN FUNCTION; QUANTUM FIELD THEORY; TEMPERATURE DEPENDENCE; VACUUM STATES
- Descriptors DEC
- CANONICAL TRANSFORMATIONS; EQUATIONS; FIELD THEORIES; FUNCTIONS; TRANSFORMATIONS