Ashok Das Book order

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.

Focusing on the essential micro-mechanisms of particulate materials, this book explores the processes of aggregation and breakage that significantly affect macroscopic behaviors like dissolution rates and flow characteristics. It emphasizes the importance of modeling and simulation in predicting these behaviors, utilizing techniques such as population balance modeling (PBM), Monte Carlo (MC) modeling, and discrete element modeling (DEM). Through these methods, the book provides insights into the complex interactions within particulate systems crucial for various engineering and scientific applications.

The book presents an informal and personal exploration of quantum field theory through lectures from a two-semester course. It begins with relativistic one-particle systems and progresses to fundamental concepts such as the Poincaré group and canonical quantization for various theories. Key topics include covariant quantization and BRST symmetry, the Higgs phenomenon, and the standard model of electroweak interactions. Additionally, it covers regularization and renormalization techniques, alongside discussions on Dirac quantization of constrained systems and discrete symmetries for a comprehensive understanding.