WICK THEOREM AT NONZERO TEMPERATURES

Authors
REVZEN M BIRMAN JL
Citation
M. Revzen et Jl. Birman, WICK THEOREM AT NONZERO TEMPERATURES, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 49(4), 1994, pp. 2688-2692
Citations number
17
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
49
Issue
4
Year of publication
1994
Part
A
Pages
2688 - 2692
Database
ISI
SICI code
1063-651X(1994)49:4<2688:WTANT>2.0.ZU;2-4
Abstract
The basic formulas for equilibrium thermofield dynamics are derived us ing an elementary group-theoretical approach. The formalism is then us ed to derive Wick's theorem as an operator relation at finite temperat ure.