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The elementary excitations of the BCS model in the canonical ensemble

G. Sierra·J. M. Roman·J. Dukelsky
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Abstract

We summarize previous works on the exact ground state and the elementary excitations of the exactly solvable BCS model in the canonical ensemble. The BCS model is solved by Richardson equations, and, in the large coupling limit, by Gaudin equations. The relationship between this two kinds of solutions are used to classiffy the excitations.

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G. Sierra, J. M. Roman, J. Dukelsky. 2003-01-22. The elementary excitations of the BCS model in the canonical ensemble. https://doi.org/10.1142/s0217751x04020531

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