A BCS Condensate in NJL_3+1 ?
arXiv:hep-ph/0211032 · doi:10.1142/9789812704498_0029
Abstract
We present results from a lattice Monte Carlo study of the Nambu - Jona-Lasinio model in 3+1 dimensions with a baryon chemical potential mu=/=0. As mu is increased there is a transition from a chirally-broken phase to relativistic quark matter, in which baryon number symmetry appears spontaneously broken by a diquark condensate at the Fermi surface, implying a superfluid ground state. Finite volume corrections to this relativistic BCS scenario, however, are anomalously large.
5 pages, 3 figures, contribution to Strong and Electroweak Matter '02 (Heidelberg)