FINIT TEMPER FIELD THEO (2ND ED)

The book provides an in-depth exploration of finite temperature field theory through three main formalisms: imaginary time, closed time, and thermofield dynamics. It covers complex t-plane descriptions, gauge field theories, and symmetry restoration with practical examples. Key topics include the thermal operator representation, light-front field theories, Unruh radiation, and the intricacies of spontaneous and dynamical symmetry breaking. It also addresses gauge dependence, effective actions, and nonequilibrium phenomena, supported by detailed examples and appendices for further clarity.