The Finite Temperature Phase Diagram of a U(1) Higgs-Yukawa Model

Details The Finite Temperature Phase Diagram of a U(1) Higgs-Yukawa Model The Finite Temperature Phase Diagram of a U(1) Higgs-Yukawa Model

1992-09-01

arxiv.org/abs/hep-lat/9209004v1

Phys.Lett. B295 (1992) 109-113

Physics

High Energy Physics

High Energy Physics - Lattice

UCSD/PTH 92-22

Scientific paper

10.1016/0370-2693(92)90098-O

The finite temperature phase diagram of a U(1) Higgs-Yukawa model at a finite value of the scalar self coupling $\lambda$ is investigated by means of a large-$N_f$ calculation and numerical simulations. The phase diagram is similar to the one at zero temperature and shows a ferromagnetic, two symmetric and an antiferromagnetic phase. However, the phase transition lines are shifted to larger values of the Yukawa coupling demonstrating the occurence of the finite temperature symmetry restoration.

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