Excitonic quantum criticality: from bilayer graphene to narrow Chern bands

arXiv:2402.12436 · cond-mat.str-el, cond-mat.stat-mech, hep-th · Submitted 2024-02-19 · Read on arXiv

cond-mat.str-el, cond-mat.stat-mech, hep-th

Submitted: 2024-02-19

Updated: 2024-06-27

Comments: 30 pages + 26 pages appendices, 8 figures. (v2) Includes the effect of momentum dependence in the fermion self energy, which was neglected in (v1). Appendix A has been expanded to clarify the relationship between this work and the existing literature on ferromagnetic transitions in metals

Journal ref: Phys. Rev. B 111, 125154 (2025)

DOI: 10.1103/PhysRevB.111.125154

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Chern Number — 1× in this paper · explained in 4 episodes
• Coherence — 1× in this paper · explained in 2 episodes
• Phase Transition — 1× in this paper · explained in 2 episodes
• Phase Transitions — 1× in this paper · explained in 2 episodes

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