Publications

14 journal articles · 5 preprints

* Equal contribution.

2026

Universal Suppression of Dissipation across Conformal Interface in Open Quantum Critical Systems

Ruhanshi Barad, Tian Wu, Qicheng Tang, Xueda Wen

Preprint · arXiv:2609.19292 (2026)
arXiv
Evaluating Verified Autonomy in Quantum Engineering

Naixu Guo^*, Changhao Li^*, Siyu Cheng^*, Qicheng Tang^*, Binzhao Luo, Bikun Li, Yuxuan Du, Shihao Ru, Jiaqi Cai

Preprint · arXiv:2609.17439 (2026)
arXiv GitHub
Exactly solvable non-unitary conformal interfaces in unitary CFTs

Qicheng Tang, Zixia Wei, Xueda Wen

Preprint · arXiv:2606.32035 (2026)
arXiv
Exact operator dynamics in Lindbladian Wess-Zumino-Witten conformal field theories

Qicheng Tang, Ruhanshi Barad, Xueda Wen

Preprint · arXiv:2606.19465 (2026)
arXiv

2025

Universal and Maximal Entanglement Swapping in General Fermionic Gaussian States

Jiyuan Fang^*, Qicheng Tang^*, Xueda Wen

Preprint · arXiv:2512.15890 (2025)
arXiv
Boundary criticality of complex conformal field theory: A case study in the non-Hermitian 5-state Potts model

Yin Tang, Qianyu Liu, Qicheng Tang, Wei Zhu

SciPost Physics 19, 164 (2025)
Journal arXiv
Dissipation meets conformal interface in open quantum systems: How the relaxation rate is suppressed

Ruhanshi Barad, Qicheng Tang, Xueda Wen

Physical Review B 112, 235143 (2025)
Journal arXiv
Probing prethermal nonergodicity through measurement outcomes of monitored quantum dynamics

Zheng-Hang Sun, Fabian Ballar Trigueros, Qicheng Tang, Markus Heyl

Physical Review B 112, L180306 (2025)
Journal arXiv
A critical state under weak measurement is not critical

Qicheng Tang, Xueda Wen

Journal of High Energy Physics 09 (2025) 168
Journal arXiv Video
Universal time evolution of string order parameter in quantum critical systems with boundary invertible or noninvertible symmetry breaking

Ruhanshi Barad^*, Qicheng Tang^*, Wei Zhu, Xueda Wen

Physical Review B 111, 165121 (2025)
Journal arXiv

2024

Reclaiming the Lost Conformality in a Non-Hermitian Quantum 5-State Potts Model

Yin Tang, Han Ma, Qicheng Tang, Yin-Chen He, W. Zhu

Physical Review Letters 133, 076504 (2024)
Journal arXiv
Universal entanglement signatures of interface conformal field theories

Qicheng Tang^*, Zixia Wei^*, Yin Tang, Xueda Wen, W. Zhu

Physical Review B 109, L041104 (2024)
Journal arXiv

2022

Thermal correction to entanglement spectrum for conformal field theories

Yin Tang, Qicheng Tang, W. Zhu

Journal of High Energy Physics 08 (2022) 239
Journal arXiv
Entanglement entropy of (2+1)D quantum critical points with quenched disorder: Dimensional reduction approach

Qicheng Tang, W. Zhu

Physical Review B 106, 195152 (2022)
Journal arXiv

2021

Quantum criticality in the nonunitary dynamics of (2+1)-dimensional free fermions

Qicheng Tang, Xiao Chen, W. Zhu

Physical Review B 103, 174303 (2021)
Journal arXiv

2020

Critical Scaling Behaviors of Entanglement Spectra

Qicheng Tang, W. Zhu

Chinese Physics Letters 37, 010301 (2020)
Journal arXiv
Measurement-induced phase transition: A case study in the nonintegrable model by density-matrix renormalization group calculations

Qicheng Tang, W. Zhu

Physical Review Research 2, 013022 (2020)
Journal arXiv
Out-of-Time-Order Correlators and Quantum Phase Transitions in the Rabi and Dicke Models

Zheng-Hang Sun^*, Jia-Qi Cai^*, Qi-Cheng Tang, Yong Hu, Heng Fan

Annalen der Physik 532, 1900270 (2020)
Journal arXiv

2019

Influence of hydrogen on electron-phonon coupling and intrinsic electrical resistivity in zirconium: A first-principles study

Qicheng Tang, L. A. Svyatkin, I. P. Chernov

Physical Review B 99, 205152 (2019)
Journal arXiv