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Spectrum and states of the bcs hamiltonian in a finite domain. I. Spectrum

The BCS Hamiltonian in a finite cube with periodic boundary condition is considered. The special subspace of pairs of particles with opposite momenta and spin is introduced. It is proved that, in this subspace, the spectrum of the BCS Hamiltonian is defined exactly for one pair, and for n pairs the...

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Bibliographic Details
Date:	2000
Main Authors:	Petrina, D. Ya., Петрина, Д. Я.
Format:	Article
Language:	English
Published:	Institute of Mathematics, NAS of Ukraine 2000
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/4461
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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