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

Costas Strouthos
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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.

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Costas Strouthos. 2001-10-16. Evidence for a BKT transition and a pseudogap phase in three-dimensional Gross-Neveu model at nonzero temperature. https://doi.org/10.1016/s0920-5632(01)01770-4

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