Inhomogeneous Condensates in the Thermodynamics of the Chiral NJL(2) model

  title={Inhomogeneous Condensates in the Thermodynamics of the Chiral NJL(2) model},
  author={Gokce Basar and Gerald V. Dunne and Michael Thies},
  journal={Physical Review D},
We analyze the thermodynamical properties, at finite density and nonzero temperature, of the (1+1) dimensional chiral Gross-Neveu model (the NJL{sub 2} model), using the exact inhomogeneous (crystalline) condensate solutions to the gap equation. The continuous chiral symmetry of the model plays a crucial role, and the thermodynamics leads to a broken phase with a periodic spiral condensate, the ''chiral spiral,'' as a thermodynamically preferred limit of the more general ''twisted kink crystal… 
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