Annotation
The chain of N.N. Bogolyubov equations for density matrices is used for determining the one-particle density matrix with allowance for correlations. The question of the effective interaction potential and of its utilization in the theory of quantum crystals is discussed.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
P.N. Nikolaev
Science News of the Faculty of Physics, Lomonosov Moscow State University
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