动力学失序下的反铁磁性与紧密配对库仑对
强关联电子
2025-07-17 v2 超导电性
摘要
反铁磁性和超导性在相关电子系统中常被视为竞争性秩序。本文展示了在方格反Hubbard模型中，动力学失序促成了它们的共存。结合针对特定几何构型的精确解析解与大规模数值模拟，我们揭示了鲁棒的配对机制：来自动力学失序形成的自旋三角形态的孔子在副格上 behave as if they carry opposite effective charges due to spin singlet formation from kinetic frustration. This emergent property suppresses phase separation and fosters a coherent -wave superconducting channel embedded within a long-range antiferromagnetic background. Our findings establish a minimal yet broadly applicable framework for stabilizing strong-coupling superconductivity in doped Mott insulators.
引用
@article{arxiv.2506.16464,
title = {Antiferromagnetism and Tightly Bound Cooper Pairs Induced by Kinetic Frustration},
author = {Yixin Zhang and Cristian Batista and Yang Zhang},
journal= {arXiv preprint arXiv:2506.16464},
year = {2025}
}
备注
8+11 pages, 7+14 figures, updated SM and references