Evidence for a BKT transition and a pseudogap phase in three-dimensional Gross-Neveu model at nonzero temperature

Abstract

We present results from Monte Carlo simulations of the three-dimensional Gross-Neveu model with a U(1) chiral symmetry at nonzero temperature. We provide evidence that the model undergoes a Berezinskii-Kosterlitz-Thouless transition in accordance with the dimensional reduction scenario. We also identify a regime in the high temperature phase in which the fermions acquire nonzero dynamical mass, analogous to the pseudogap behaviour observed in cuprate superconductors.

3 pages, 3 figures, Lattice2001(hightemp)

References in corpus (2)

• The (2+1)-dimensional Gross-Neveu model with a U(1) chiral symmetry at non-zero temperature
• The 2+1 Dimensional NJL Model at Finite Temperature

Cited by in corpus (1)

• Phase diagram of planar U(1)xU(1) superconductors: condensation of vortices with fractional flux and a superfluid state