Interacting Electrons: Theory and Computational Approaches

Abstract

Recent progress in the theory and computation of electronic structure is bringing an unprecedented level of capability for research. Many-body methods are becoming essential tools vital for quantitative calculations and understanding materials phenomena in physics, chemistry, materials science and other fields. This book provides a unified exposition of the most-used tools: many-body perturbation theory, dynamical mean field theory and quantum Monte Carlo simulations. Each topic is introduced with a less technical overview for a broad readership, followed by in-depth descriptions and mathematical formulation. Practical guidelines, illustrations and exercises are chosen to enable readers to appreciate the complementary approaches, their relationships, and the advantages and disadvantages of each method. This book is designed for graduate students and researchers who want to use and understand these advanced computational tools, get a broad overview, and acquire a basis for participating in new developments. Provides extensive background and theory for each of the methods, which enables readers to understand capabilities as well as limitations, and how to avoid errors when making computations Designed to be accessible for beginners with non-technical introductory chapters for each method Chapters are complemented with exercises enabling students to master the theory by putting the tools to practical use