5 papers
Thermal Tensor Network Simulations of Lattice Fermions with Fixed Filling
Qiaoyi Li, Dai-Wei Qu, Bin-Bin Chen +2
Numerical simulations of strongly correlated fermions at finite temperature are essential for studying high-temperature superconductivity and other quantum many-body phenomena. The…
-wave FFLO state and charge-2e supersolidity in the -- model under Zeeman fields
Xing-Zhou Qu, Dai-Wei Qu, Qiaoyi Li +2
Unconventional superconductivity under strong Zeeman fields--particularly beyond the Pauli paramagnetic limit--remains a central challenge in condensed matter physics. The exotic F…
Universal Magnetocaloric Effect near Quantum Critical Point of Magnon Bose-Einstein Condensation
Junsen Xiang, Enze Lv, Qinxin Shen +19
Bose-Einstein condensation (BEC), a macroscopic quantum phenomenon arising from phase coherence and bosonic statistics, has been realized in quantum magnets. Here, we report the ob…
Hund's Rule, Interorbital Hybridization, and High- Superconductivity in the Bilayer Nickelate
Xing-Zhou Qu, Dai-Wei Qu, Xin-Wei Yi +2
Understanding the pairing mechanism in bilayer nickelate superconductors constitutes a fascinating quest. Here we investigate the intriguing interplay between Hund's rule coupling…
Phase Diagram, -Wave Superconductivity, and Pseudogap of the -- Model at Finite Temperature
Dai-Wei Qu, Qiaoyi Li, Shou-Shu Gong +3
Recently, robust -wave superconductive (SC) order has been unveiled in the ground state of the 2D -- model -- with both nearest-neighbor () and next-nearest-neighbo…