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Semiclassical probability distribution function for finite-temperature field theory

Journal Article · · Phys. Rev., D; (United States)
Semiclassical methods for evaluating the canonical probability distribution function rho(phi) = in field theory for systems in thermodynamic equilibrium is studied. Field configurations which dominate the semiclassical distribution function are interpretable as finite-temperature most-probable escape paths (FTMPEP's) in field space and are related to the recently discovered caloron solutions, which are known to partially dominate the semiclassical partition function Z = ..integral..Dphi rho(phi). Presented is a semiclassical path-integral approximation for the distribution function and also discuss a Hartree self-consistent field approximation.
Research Organization:
Univ. of Illinois, Urbana-Champaign
OSTI ID:
6803795
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 23:6; ISSN PRVDA
Country of Publication:
United States
Language:
English