TY - BOOK ID - 145397602 TI - Field theory of condensed matter and ultracold gases PY - 2023 SN - 9781800613904 PB - Hackensack, NJ : World Scientific, DB - UniCat KW - Cold gases. KW - Condensed matter. KW - Quantum field theory. KW - Superconductivity. KW - Superfluidity. KW - Gaz. KW - Basses températures. KW - Matière condensée. KW - Théorie quantique des champs. KW - Superfluidité. KW - Supraconductivité. UR - https://www.unicat.be/uniCat?func=search&query=sysid:145397602 AB - This book provides a pedagogical introduction to the concepts and methods of quantum field theory necessary for the study of condensed matter and ultracold atomic gases. After a thorough discussion of the basic methods of field theory and many-body physics (functional integrals, perturbation theory, Feynman diagrams, correlation functions and linear response theory, symmetries and their consequences, etc.), the book covers a wide range of topics, from electron gas and Fermi-liquid theory to superfluidity and superconductivity, magnetic instabilities in electron systems, and dynamical mean-field theory of Mott transition. The focus is on the study of model Hamiltonians, where the microscopic physics and characteristic energy scales are encoded into a few effective parameters, rather than first-principle methods which start from a realistic Hamiltonian at the microscopic level and then make material-specific predictions. The reader is expected to be familiar with elementary quantum mechanics and statistical physics, and some acquaintance with condensed-matter physics and ultracold gases may also be useful. No prior knowledge of field theory or many-body problem is required. ER -