paper

Current-induced inverse symmetry breaking and asymmetric critical phenomena at current-driven tricritical point

arXiv:2201.06894 · doi:10.1103/PhysRevD.106.026006

Abstract

We study critical phenomena associated with a spontaneous chiral symmetry breaking in current-driven non-equilibrium steady states by using holography. We find that the critical exponents at the tricritical point are asymmetric between the chiral symmetry restored phase and the broken phase. Their values in the broken phase are different from those of the mean-field theory, whereas other critical exponents are the mean-field values. The phase diagram with respect to temperature and current density shows a re-entrant structure: the broken chiral symmetry is restored again at low temperatures in the presence of current density.

v1: 10 pages, 8 figures; v2: 9 pages, 8 figures, version published in PRD

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