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Spectrum and States of the BCS Hamiltonian in a Finite Domain. II. Spectra of Excitations

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Ukrainian Mathematical Journal Aims and scope

Abstract

We establish that the averages per volume of the BCS and approximating Hamiltonians over all excited states coincide in the thermodynamic limit. Earlier, this was established only for the ground state.

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  1. Institute of Mathematics, Ukrainian Academy of Sciences, Kiev

    D. Ya. Petrina

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  1. D. Ya. Petrina
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Petrina, D.Y. Spectrum and States of the BCS Hamiltonian in a Finite Domain. II. Spectra of Excitations. Ukrainian Mathematical Journal 53, 1290–1315 (2001). https://doi.org/10.1023/A:1013351727804

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  • DOI: https://doi.org/10.1023/A:1013351727804

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