BCS Diquark Condensation in the 3+1d Lattice NJL Model

Details BCS Diquark Condensation in the 3+1d Lattice NJL Model BCS Diquark Condensation in the 3+1d Lattice NJL Model

2002-08-06

arxiv.org/abs/hep-lat/0208011v1

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 3 figures, Lattice2002(nonzerot)

Scientific paper

10.1016/S0920-5632(03)80455-3

We present preliminary evidence of BCS diquark condensation in the 3+1 dimensional Nambu-Jona-Lasinio (NJL) model at non-zero chemical potential (mu) on the lattice. Large N results are used to match the model's parameters to low energy, zero density phenomenology. A diquark source j is added in a partially quenched approximation to enable the measurement of lattice diquark observables. In particular measurements are made of the diquark condensate and susceptibilities as functions of j which support the existence of a BCS phase at high mu.

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