Quantum Theory Of Solids ( Advances In Science And Technology In The USSR Physics Series) | I. M. Lifshits ( Ed.)

The present compilation includes four articles on various topics, each of which contains an exposition of the present state of art in the most interesting and timely problems of solid-state theory. The authors are physicists who have contributed significantly to this field of science.
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It goes without saying that the selection of material to illustrate the achievements in solid-state physics must inevitably be subjective. For  the compilation does not hold works on superconductivity, a problem to which a separate book could be devoted. But we still believe that the articles should be of interest to readers who wish to know what is new in solid-state physics.