Elsevier

Physics Letters B

Volume 236, Issue 3, 22 February 1990, Pages 339-343
Physics Letters B

Phase structure and critical points in a scalar-fermion model

https://doi.org/10.1016/0370-2693(90)90994-HGet rights and content

Abstract

We investigate a U (1) symmetric scalar model coupled locally to naive lattice fermions via Yukawa interaction. We argue that the system is highly non-perturbative and has a complex phase diagram with ferromagnetic, antiferromagnetic symmetric and ferrimagnetic phases. Fixed points where possible non-trivial continuum theories could be defined are identified.

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