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Methods of thermal field theory

Journal Article:

Abstract

We introduce the basic ideas of thermal field theory and review its path integral formulation. We then discuss the problems of QCD theory at high and at low temperatures. At high temperature the naive perturbation expansion breaks down and is cured by resummation. We illustrate this improved perturbation expansion with the g{sup 2}{phi}{sup 4} theory and then sketch its application to find the gluon damping rate in QCD theory. At low temperature the hadronic phase is described systematically by the chiral perturbation theory. The results obtained from this theory for the quark and the gluon condensates are discussed. (author) 22 refs., 6 figs.
Authors:
Mallik, S [1] 
  1. Saha Institute of Nuclear Physics, Calcutta (India)
Publication Date:
Nov 01, 1998
Product Type:
Journal Article
Report Number:
CONF-9612134-
Reference Number:
SCA: 662230; PA: AIX-30:005896; EDB-99:027057; SN: 99002064835
Resource Relation:
Journal Name: Indian Journal of Physics, Part A; Journal Volume: 72; Journal Issue: 6; Conference: 12. DAE symposium on high energy physics, Guwahati (India), 26 Dec 1996 - 1 Jan 1997; Other Information: DN: 22 refs., 6 figs.; PBD: Nov 1998
Subject:
66 PHYSICS; BOLTZMANN STATISTICS; EIGENSTATES; FEYNMAN PATH INTEGRAL; FOURIER TRANSFORMATION; GLUON CONDENSATION; GLUONS; GREEN FUNCTION; HAMILTONIANS; HEISENBERG PICTURE; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; QUARK CONDENSATION; THERMAL EQUILIBRIUM
OSTI ID:
314192
Country of Origin:
India
Language:
English
Other Identifying Numbers:
Journal ID: INJADP; ISSN 0252-9262; TRN: IN9900139005896
Submitting Site:
INIS
Size:
pp. 641-661
Announcement Date:

Journal Article:

Citation Formats

Mallik, S. Methods of thermal field theory. India: N. p., 1998. Web.
Mallik, S. Methods of thermal field theory. India.
Mallik, S. 1998. "Methods of thermal field theory." India.
@misc{etde_314192,
title = {Methods of thermal field theory}
author = {Mallik, S}
abstractNote = {We introduce the basic ideas of thermal field theory and review its path integral formulation. We then discuss the problems of QCD theory at high and at low temperatures. At high temperature the naive perturbation expansion breaks down and is cured by resummation. We illustrate this improved perturbation expansion with the g{sup 2}{phi}{sup 4} theory and then sketch its application to find the gluon damping rate in QCD theory. At low temperature the hadronic phase is described systematically by the chiral perturbation theory. The results obtained from this theory for the quark and the gluon condensates are discussed. (author) 22 refs., 6 figs.}
journal = {Indian Journal of Physics, Part A}
issue = {6}
volume = {72}
journal type = {AC}
place = {India}
year = {1998}
month = {Nov}
}