Fermionic instanton solutions are constructed for the Gross-Neveu and Gross-Neveu-Yukawa models, and their actions are matched to Hubbard-Stratonovich critical points in the large N limit.
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On Instantons in Gross-Neveu and Gross-Neveu-Yukawa models
Fermionic instanton solutions are constructed for the Gross-Neveu and Gross-Neveu-Yukawa models, and their actions are matched to Hubbard-Stratonovich critical points in the large N limit.