Algebraic Gorkov solution in finite systems for the separable pairing interaction
arXiv:1912.02146 · doi:10.1016/j.nuclphysa.2019.121676
Abstract
An algebraic Quantum Field Theory formulation of separable pairing interaction for spherical finite systems is presented. The Lipkin formulation of the model Hamiltonian and model wave function is used. The Green function technique is applied to obtain the model energy through the spectral function. Closed equation for the many-body energy of the system is given and comparison with exact models are performed.
18 pages for the body document + 6 pages for two appendixes. 2 figures. 46 references