Approximate solution of the pairing Hamiltonian in the Berggren basis
arXiv:1509.06525 · doi:10.5506/APhysPolB.47.967
Abstract
We derive the approximate solution for the pairing Hamiltonian in the Berggren ensemble of single particle states including bound, resonance and non-resonant scattering states. We show that this solution is reliable in the limit of a weak pairing interaction.