Fermion Condensates in Two Colours Finite Density QCD at Strong Coupling

Details Fermion Condensates in Two Colours Finite Density QCD at Strong Coupling Fermion Condensates in Two Colours Finite Density QCD at Strong Coupling

2000-09-26

arxiv.org/abs/hep-lat/0009034v1

Phys.Lett. B493 (2000) 189-196

Physics

High Energy Physics

High Energy Physics - Lattice

18 pages, 5 figures, to appear on Phys. Lett. B

Scientific paper

10.1016/S0370-2693(00)01108-4

We study unquenched lattice SU(2) at nonzero chemical potential at strong coupling and with eight flavours of Kogut-Susskind fermions. Introducing a diquark source term we analyze the behaviour of different types of fermion condensates. Using a non standard approach we can obtain results at zero external source without extrapolations. We find strong evidences for a (high density) second order phase transition where a diquark condensate appears. The corresponding critical chemical potential is in good agreement with half the pion mass.

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