Three-loop epsilon-expansion beta functions for Gross-Neveu-Yukawa theories with two order parameters show fermions stabilize emergent SO(N_A+N_B) symmetry, with N_f=2 potentially pseudocritical.
Zhang, A Unified Theory Based on SO(5) Symmetry of Superconductivity and Antiferromagnetism , Science 275 (1997) 1089
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Quantum multicriticality and emergent symmetry in Dirac systems with two order parameters at three-loop order
Three-loop epsilon-expansion beta functions for Gross-Neveu-Yukawa theories with two order parameters show fermions stabilize emergent SO(N_A+N_B) symmetry, with N_f=2 potentially pseudocritical.