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Solving the Richardson equations close to the critical points

F. Dominguez·C. Esebbag·J. Dukelsky
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Abstract

We study the Richardson equations close to the critical values of the paring strength g_c where the occurrence of divergencies preclude numerical solutions. We derive a set of equations for determining the critical g values and the non-collapsing pair energies. Studying the behavior of the solutions close to the critical points, we develop a procedure to solve numerically the Richardson equations for arbitrary coupling strength.

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F. Dominguez, C. Esebbag, J. Dukelsky. 2006-09-08. Solving the Richardson equations close to the critical points. https://doi.org/10.1088/0305-4470/39/37/002

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