Fermion Condensates in Two Colours Finite Density QCD at Strong Coupling

Abstract

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.

arXiv comment18 pages, 5 figures, to appear on Phys. Lett. B

References in corpus (9)

• QCD at Finite Baryon Density: Nucleon Droplets and Color Superconductivity
• Color-Flavor Locking and Chiral Symmetry Breaking in High Density QCD
• Diquark Bose Condensates in High Density Matter and Instantons
• Continuity of Quark and Hadron Matter
• Symmetries and spectrum of SU(2) Lattice Gauge Theory at finite chemical potential
• Spontaneous Symmetry Breaking in Fermion-Gauge Systems- A Non Standard Approach
• Chiral Susceptibilities in noncompact QED: a new determination of the $\gamma$ exponent and the critical couplings
• The Schwinger Model on the lattice in the Microcanonical Fermionic Average approach
• Three and Two Colours Finite Density QCD at Strong Coupling: A New Look

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