Finite Temperature Field Theory

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World Scientific, 1997 M05 2 - 416 páginas
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 and 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.
 

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Contenido

Chapter 2 Real Time Formalism
39
Chapter 3 Thermofield Dynamics
69
Chapter 4 Gauge Theories
105
Chapter 5 Cutting Rules at T 0
149
Chapter 6 Symmetry Breaking
191
Chapter 7 Nielsen Identities
233
Chapter 8 Subtleties at T 0
259
Chapter 9 Supersymmetry at T 0
291
Chapter 10 Derivative Expansion
333
Chapter 11 NonEquilibrium Phenomena
361
Index
399
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