Fully Self-consistent RPA description of the many level pairing model
Jorge G. Hirsch, Alejandro Mariano, Jorge Dukelsky, Peter Schuck
Abstract
The Self-Consistent RPA (SCRPA) equations in the particle-particle channel are solved without any approximation for the picket fence model. The results are in excellent agreement with the exact solutions found with the Richardson method. Particularly interesting features are that screening corrections reverse the sign of the interaction and that SCRPA yields the exact energies in the case of two levels with two particles.
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