Xu Zhang

PhD candidate

Department of Physics, HKU

Room 525, CYM Physics Building

Email: zx0417@connect.hku.hk

Research interest

· Strongly Correlated System: Numerical solution based on quantum Monte Carlo
· Quantum Flat Band System: Analytical and numerical computation on ground state property, transport and phase transition

2020 - present The University of Hong Kong
PhD student, Physics
2015 - 2019 Nankai University
Bachelor of Science, Physics
Employment & Exchange Experience
2019 - 2020 Institute of Physics, Chinese Academy of Sciences
Research Assistant, Advisors: Jiangping Hu, Zi Yang Meng
2023 University of Michigan
ICAM QuantEmX Junior Short-Term Visitor, Host: Kai Sun


2023 “Phases of (2+1)D SO(5) non-linear sigma model with a topological term on a sphere: multicritical point and disorder phase”
Bin-Bin Chen, Xu Zhang, Yuxuan Wang, Kai Sun, Zi Yang Meng
2023 “Evolution from quantum anomalous Hall insulator to heavy-fermion semimetal in twisted bilayer graphene”
Cheng Huang, Xu Zhang, Gaopei Pan, Heqiu Li, Kai Sun, Xi Dai, Zi Yang Meng
2023 “The "Sign problem" of the 3rd order anomalous Hall effect in topological magnetic materials”
X Zhang, K Sun, ZY Meng
2023 “Polynomial sign problem and topological Mott insulator in twisted bilayer graphene”
X Zhang, G Pan, BB Chen, H Li, K Sun, ZY Meng
Phys. Rev. B 107, L241105
2023 “Intrinsic Nonlinear Hall Effect and Gate-Switchable Berry Curvature Sliding in Twisted Bilayer Graphene”
M Huang, Z Wu, X Zhang, X Feng, Z Zhou, S Wang, Y Chen, C Cheng, ...
Phys. Rev. Lett. 131, 066301 (2023) Editors' Suggestion
2023 “Thermodynamic Characteristic for a Correlated Flat-Band System with a Quantum Anomalous Hall Ground State”
G Pan, X Zhang, H Lu, H Li, BB Chen, K Sun, ZY Meng
Phys. Rev. Lett. 130, 016401 (2023)
2022 Superconductivity and bosonic fluid emerging from moiré flat bands
X Zhang, K Sun, H Li, G Pan, ZY Meng
Physical Review B 106 (18), 184517
2022 Fermion sign bounds theory in quantum Monte Carlo simulation
X Zhang, G Pan, XY Xu, ZY Meng
Physical Review B 106 (3), 035121
2022 “Dynamical properties of collective excitations in twisted bilayer graphene”
G Pan, X Zhang, H Li, K Sun, ZY Meng
Physical Review B 105 (12), L121110
2021 “Momentum space quantum monte carlo on twisted bilayer graphene
X Zhang, G Pan, Y Zhang, J Kang, ZY Meng
Chinese Physics Letters 38 (7), 077305
2022 阿龙探案蒙特卡洛符号问题 Start reading
Research News
2023 Unlock Tunable Nonlinear Hall Effect in Twisted Bilayer Graphene Start reading