FINIT TEMPER FIELD THEO (2ND ED)

The book provides a comprehensive exploration of finite temperature field theory through three main formalisms: imaginary time, closed time, and thermofield dynamics. It delves into practical applications, including gauge field theories, symmetry restoration, and the relationship between zero and finite temperature Feynman graphs. Key topics include the generalization of light-front field theories, Unruh radiation, and the intricacies of effective actions and symmetries at high temperatures. Additionally, it discusses nonequilibrium phenomena and the fluctuation-dissipation theorem, supported by numerous examples and appendices for clarity.