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Скачать книгу (размер 2 115 Kb , формат fb2, страниц 416) Аннотация: The aim of this book is to add certain new topics to the material of the famous textbook «Statistical physics» by L.D. Landau and E.M. Lifshitz. High-temperature corrections to the thermodynamic potential are calculated by employing ring diagrams and also by expanding in powers of the gas parameter. The universality hypothesis gives a possibility to calculate critical exponents in the framework…

Скачать книгу (размер 850 Kb , формат fb2, страниц 168) Аннотация: Diagrammatic methods are applied to strongly interacting electron systems. Several problems are studied in the atomic representation. It is assumed that electron-electron interaction in an atom is stronger that the interaction between electrons belonging to different atoms. The theory of high-temperature superconductivity is considered in the Hubbard model. Then the theory of ferromagnetism in…