Phase diagram of the three-dimensional NJL model

  • C. G. Strouthos
Conference paper

Abstract

With the exception of confinement the three-dimensional Nambu-Jona-Lasinio (NJL3) model incorporates many of the essential properties of QCD. We discuss the critical properties of the model at non-zero temperature T and/or non-zero chemical potential μ. We show that the universality class of the thermal transition is that of the d = 2 classical spin model with the same symmetry. We provide evidence for the existence of a tricritical point in the (µ,T)-plane. We also discuss numerical results by Hands et al. which showed that the system is critical for µ > µ c and the diquark condensate is zero.

Keywords

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • C. G. Strouthos
    • 1
  1. 1.Department of PhysicsUniversity of Wales SwanseaSwanseaUK

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