Volker Bach, Juerg Froehlich, and Lars Jonsson
Bogolubov-Hartree-Fock Mean Field Theory for Neutron Stars and other Systems with Attractive Interactions
(470K, postscript)

ABSTRACT.  A simplification of Bogolubov-Hartree-Fock theory, which is a natural generalization of the traditional Hartree-Fock theory, is derived. This simplification allows to express the pairing interaction in terms of the one-particle density matrix for systems interacting by attractive pair potentials, like the Newtonian gravitational potential.