6 papers
Frustration from Localized Zhang-Rice States: A Unified Theory of Doping-Driven Magnetic Transitions in Cuprates
Xiaodong Wang, Ping Xu, Jiong Mei +5
The microscopic mechanism by which doped holes disrupt the antiferromagnetic order is one of the fundamental questions in cuprates. In this work, we propose a unified microscopic t…
High-temperature charge-4e superconductivity in SU(4) interacting fermions
Shao-Hang Shi, Zhengzhi Wu, Jiangping Hu +1
The condensation of electron quartets, known as charge-4e superconductivity (SC), represents a novel quantum state of matter beyond the standard paradigm of Cooper pairing. However…
Spin-Lattice Relaxation in Two-Dimensional Superconducting BKT Transition
Wei-Wei Yang, Shao-Hang Shi, Zongsheng Zhou +3
Two-dimensional superconductors undergo a Berezinskii-Kosterlitz-Thouless transition driven by vortex-antivortex unbinding, yet experimental signatures beyond transport remain limi…
Magnetic order and novel quantum criticality in the strongly interacting quasicrystals
Cong Zhang, Yin-Kai Yu, Shao-Hang Shi +1
We present the sign-problem-free quantum Monte Carlo study of the half-filled Hubbard model on two-dimensional quasicrystals, revealing how specific aperiodic geometries fundamenta…
Diagnosis of mixed-state topological phases in strongly correlated systems via disorder parameters
Shao-Hang Shi, Xiao-Qi Sun, Zi-Xiang Li
Characterizing topological phases for strongly interacting fermions in the mixed-state regime remains a major challenge. Here we introduce a general and numerically efficient frame…
Magnetic electron-hole asymmetry in cuprates: a computational revisit
Jiong Mei, Shao-Hang Shi, Ping Xu +5
In this work, we revisit the electron-hole asymmetry of antiferromagnetism in cuprates by studying the three-band Emery model. Using parameters relevant to LaCuO, we benchm…