The introduction of quantum field theory methods has led to a kind of ?revolution? in condensed matter theory. This resulted in the increased importance of Feynman diagrams or diagram technique. It has now become imperative for professionals in condensed matter theory to have a thorough knowledge of this method. There are many good books that cover the general aspects of diagrammatic methods. At the same time, there has been a rising need for books that describe calculations and methodical ?know how? of specific problems for beginners in graduate and postgraduate courses. This unique collection of lectures addresses this need. The aim of these lectures is to demonstrate the application of the diagram technique to different problems of condensed matter theory. Some of these problems are not ?finally? solved. But the development of results from any section of this book may serve as a starting point for a serious theoretical study.

Modern experimental developments in condensed matter and ultracold atom physics present formidable challenges to theorists. This book provides a pedagogical introduction to quantum field theory in many-particle physics, emphasizing the applicability of the formalism to concrete problems. This second edition contains two new chapters developing path integral approaches to classical and quantum nonequilibrium phenomena. Other chapters cover a range of topics, from the introduction of many-body techniques and functional integration, to renormalization group methods, the theory of response functions, and topology. Conceptual aspects and formal methodology are emphasized, but the discussion focuses on practical experimental applications drawn largely from condensed matter physics and neighboring fields. Extended and challenging problems with fully worked solutions provide a bridge between formal manipulations and research-oriented thinking. Aimed at elevating graduate students to a level where they can engage in independent research, this book complements graduate level courses on many-particle theory.

《量子多体理论:从声子的起源到光子和电子的起源》系统地介绍了新的主题和有关的新概念，还系统地介绍了凝聚态理论中现代场论和路径积分方法。通过一些简单的系统，《量子多体理论:从声子的起源到光子和电子的起源》涵盖了相当厂泛的物理概念和各种计算方法，旨在帮助学生尽快掌握现代凝聚态理论的前沿知识。《量子多体理论:从声子的起源到光子和电子的起源》还展现了作者的许多新思想。《量子多体理论:从声子的起源到光子和电子的起源》每一章节后面都有少量习题，有助于读者理解和掌握《量子多体理论》内容。