TY  - GEN
AU  - Das, Ashok 
TI  - Finite temperature field theory
SN  - 9789810228569
U1  - 530.143 DAS 
PY  - 1997///
CY  - Singapore
PB  - World Scientific
KW  - Physics
KW  - Physical Sciences &​ Mathematics
KW  - Atomic Physics
KW  - Quantum Field Theory
KW  - Gauge Fields
KW  - Mathematical Physics
N2  - This book discusses all three formalisms used in the study of finite temperature field theory, namely the imaginary time formalism, the closed time formalism and thermofield dynamics. Applications of the formalisms are worked out in detail. Gauge field theories and symmetry restoration at finite temperature are among the practical examples discussed in depth. The question of gauge dependence of the effective potential and the Nielsen identities are explained. The nonrestoration of some symmetries at high temperature (such as supersymmetry) and theories on nonsimply connected space-times are also described thoroughly. Other topics include (1+1)- and (2+1)-dimensional field theories at finite temperature, phase transitions, derivative expansion, linear response theory and the question of infrared divergences at finite temperature. In addition, examples of nonequilibrium phenomena are discussed with the disoriented chiral condensates as an illustration. This book is a very useful tool for graduate students, teachers and researchers in theoretical physics
ER  -