TY - SER AU - Dudinets,Ivan V. AU - Manko,Vladimir I. TI - The replica method and entropy for a mixture of two-mode even and odd Schrödinger cat states KW - Неймана энтропия KW - метод реплик KW - когерентные состояния KW - Шредингера кот, мысленный эксперимент KW - статьи в журналах N1 - Библиогр.: 26 назв N2 - We review the replica method for calculating the von Neumann entropy and obtain an explicit expression for the entropy of the mixed coherent states |α〉 and |β〉 employing this method. We study the purity inequality for a bipartite system for separable states on the example of even and odd Schrödinger cat state UR - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000578022 ER -