most citedAn eigenvalue-based method and determinant representations for general integrable XXZ Richardson-Gaudin models

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math-ph2014★ 5 cited

The Dicke model as the contraction limit of a pseudo-deformed Richardson-Gaudin model

Pieter W. Claeys, Stijn De Baerdemacker, Mario Van Raemdonck +1

The Dicke model is derived in the contraction limit of a pseudo-deformation of the quasispin algebra in the su(2)-based Richardson-Gaudin models. Likewise, the integrability of the…