Detecting inhomogeneous chiral condensation from the bosonic two-point function in the (1 + 1)-dimensional Gross–Neveu model in the mean-field approximation

@article{Koenigstein2022DetectingIC,
  title={Detecting inhomogeneous chiral condensation from the bosonic two-point function in the (1 + 1)-dimensional Gross–Neveu model in the mean-field approximation},
  author={Adrian Koenigstein and Laurin Pannullo and Stefan Rechenberger and Martin J. Steil and Marc Winstel},
  journal={Journal of Physics A: Mathematical and Theoretical},
  year={2022},
  volume={55}
}
The phase diagram of the (1 + 1)-dimensional Gross–Neveu model is reanalyzed for (non-)zero chemical potential and (non-)zero temperature within the mean-field approximation. By investigating the momentum dependence of the bosonic two-point function, the well-known second-order phase transition from the Z2 symmetric phase to the so-called inhomogeneous phase is detected. In the latter phase the chiral condensate is periodically varying in space and translational invariance is broken. This work… 
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