Antiferromagnetic order in the Hubbard model shifts irreducible vertex divergences to stronger coupling and turns their character from charge-dominated to spin-dominated at an exceptional point.
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Non-Perturbative Feats in the Physics of Correlated Antiferromagnets
Antiferromagnetic order in the Hubbard model shifts irreducible vertex divergences to stronger coupling and turns their character from charge-dominated to spin-dominated at an exceptional point.