A lattice Monte Carlo study of Inverse Symmetry Breaking in a two-scalar model in three dimensions
G. Bimonte, D. Iñiguez, A. Tarancón, C. L. Ullod
Abstract
We carry a Monte Carlo study of the coupled two-scalar λϕ21 ϕ22 model in three dimensions. We find no trace of Inverse Symmetry Breaking in the region of negative λ's for which the one-loop effective potential predicts this phenomenon. Moreover, for λ's negative enough, but still in the stability region for the potential, one of the transitions turns out to be of first order, both for zero and finite temperature.
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