3 papers
cond-mat.str-el2026
Fluctuating Pair Density Wave in Finite-temperature Phase Diagram of the - Hubbard Model
Qiaoyi Li, Yang Qi, Wei Li
The Hubbard model and its extensions are canonical theoretical frameworks for understanding correlated electronic states, including those in high- cuprates. Here, we use state…
cond-mat.mes-hall2025
Revealing Higher-Order Topological Bulk-boundary Correspondence in Bismuth Crystal with Spin-helical Hinge State Loop and Proximity Superconductivity
D. M. Zhao, Y. Zhong, T. Yuan +7
Topological materials are typically characterized by gapless boundary states originated from nontrivial bulk band topology, known as topological bulk-boundary correspondence. Recen…
cond-mat.supr-con2023
The interplay of phase fluctuations and nodal quasiparticles: ubiquitous Fermi arcs in two-dimensional d-wave superconductors
Xu-Cheng Wang, Xiao Yan Xu, Yang Qi
We propose that the pseudogap and Fermi arcs can universally emerge due to thermal (static) phase fluctuations in the normal state of 2D nodal superconductors. By considering a min…