Functional Methods in Quantum Field Theory and Statistical Physics

This book offers a systematic introduction to essential techniques in quantum field theory, covering various applications and original material on variational methods.

In Functional Methods in Quantum Field Theory and Statistical Physics, the author provides a comprehensive exploration of the techniques essential to quantum field theory. The book delves into a wide range of applications, including ordinary quantum mechanics, the second-quantized formulation of quantum mechanics, and relativistic quantum field theory. By highlighting these diverse areas, the text emphasizes the fundamental role that these methods play in understanding various physical phenomena.

The author takes a systematic approach to introduce these crucial techniques, ensuring that readers grasp their significance in both quantum field theory and statistical physics. The book also addresses topics such as Euclidean field theory and quantum statistics at finite temperatures, offering insights into the classical statistics of nonideal gas and spin systems. This breadth of coverage makes it a valuable resource for both students and professionals in the field.

A standout feature of Functional Methods in Quantum Field Theory and Statistical Physics is the extended chapter dedicated to variational methods and functional Legendre transformations. This chapter presents completely original material, further enriching the reader's understanding of the subject. Overall, the book serves as an essential guide for anyone looking to deepen their knowledge of quantum field theory and its applications in statistical physics.