Quantum Theory of Many-Body Systems
Techniques and Applications
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Beschreibung
This text presents a self-contained treatment of the physics of many-body systems from the point of view of condensed matter. The approach, quite traditionally, uses the mathematical formalism of quasiparticles and Green’s functions. In particular, it covers all the important diagram techniques for normal and superconducting systems, including the zero-temperature perturbation theory and the Matsubara, Keldysh and Nambu-Gor'kov formalism, as well as an introduction to Feynman path integrals. This new edition contains an introduction to the methods of theory of one-dimensional systems (bosonization and conformal field theory) and their applications to many-body problems. Intended for graduate students in physics and related fields, the aim is not to be exhaustive, but to present enough detail to enable the student to follow the current research literature, or to apply the techniques to new problems. Many of the examples are drawn from mesoscopic physics, which deals with systems small enough that quantum coherence is maintained throughout their volume, and which therefore provides an ideal testing ground for many-body theories.
This text presents a self-contained treatment of the physics of many-body systems from the point of view of condensed matter. The approach, quite traditionally, uses the mathematical formalism of quasiparticles and Green’s functions. In particular, it covers all the important diagram techniques for normal and superconducting systems, including the zero-temperature perturbation theory and the Matsubara, Keldysh and Nambu-Gor'kov formalism, as well as an introduction to Feynman path integrals.
This new edition contains an introduction to the methods of theory of one-dimensional systems (bosonization and conformal field theory) and their applications to many-body problems.
Intended for graduate students in physics and related fields, the aim is not to be exhaustive, but to present enough detail to enable the student to follow the current research literature, or to apply the techniques to new problems. Many of the examples are drawn from mesoscopic physics, which deals with systems small enough that quantum coherence is maintained throughout their volume and which therefore provides an ideal testing ground for many-body theories.
Presents details to enable the student to follow current research literature and apply techniques to new problems Revises and expands material from the previous edition where significant progress has been made Covers additional material to highlight methods of quantum many-body theory for low-dimensional systems as well as noise and fluctuations in quantum coherent systems Includes supplementary material: sn.pub/extras
Autor*in
Alexandre Zagoskin
Themen in »Quantum Theory of Many-Body Systems«
Advanced Quantum Theory Textbook Conformal Field Theory Green’s Functions Many-body Systems Many-body Theories Many-particle Physics Many-particle Systems Mesoscopic Superconductivity Perturbation Theory Quantum Coherent Systems Quantum Many-body Theory