My research explores a wide range of quantum phenomena in condensed matter systems. My recent work focuses on unconventional superconductivity, topological materials, and frustrated quantum magnets, with a particular interest in the role of strong electronic correlations. Beyond condensed matter physics, I am also interested in quantum simulation and quantum computation, the emerging intersection between physics and artificial intelligence, etc.
2025
Topological excitonic insulator with tunable momentum order
Md Shafayat Hossain, Zi-Jia Cheng, Yu-Xiao Jiang, Tyler A. Cochran, Song-Bo Zhang, Huangyu Wu, Xiaoxiong Liu, Xiquan Zheng, Guangming Cheng, Byunghoon Kim, Qi Zhang, Maksim Litskevich, Junyi Zhang, Jinjin Liu, Jia-Xin Yin, Xian P. Yang, Jonathan D. Denlinger, Massimo Tallarida, Ji Dai, Elio Vescovo, Anil Rajapitamahuni, Nan Yao, Anna Keselman, Yingying Peng, Yugui Yao, Zhiwei Wang, Luis Balicas, Titus Neupert, M. Zahid Hasan
Nature Physics 21, 1250-1259 (2025). Article Link.
Broken symmetries associated with a Kagome chiral charge order
Zi-Jia Cheng, Md Shafayat Hossain, Qi Zhang, Sen Shao, Jinjin Liu, Yilin Zhao, Mohammad Yahyavi, Yu-Xiao Jiang, Jia-Xin Yin, Xian Yang, Yongkai Li, Tyler A. Cochran, Maksim Litskevich, Byunghoon Kim, Junyi Zhang, Yugui Yao, Luis Balicas, Zhiwei Wang, Guoqing Chang, M. Zahid Hasan
Nature Communications 16, 3782 (2025). Article Link.
Type I and type II superconductivity in a quasi-2D Dirac metal
Chris J. Lygouras, Junyi Zhang, Jonah Gautreau, Mathew Pula, Sudarshan Sharma, Shiyuan Gao, Tanya Berry, Thomas Halloran, Peter Orban, Gael Grissonnanche, Juan R. Chamorro, Taketora Mikuri, Dilip K. Bhoi, Maxime A. Siegler, Kenneth J.T. Livi, Yoshiya Uwatoko, Satoru Nakatsuji, B. J. Ramshaw, Yi Li, Graeme M. Luke, Collin L. Broholm, Tyrel M. McQueen
Materials Advances 6, 1685-1694 (2025). Article Link.
2024
Designing phase sensitive probes of monopole superconducting order
Grayson R. Frazier, Junjia Zhang, Junyi Zhang, Xinyu Sun, Yi Li
Physical Review Research 6, 043189 (2024). Article Link.
Density-matrix mean-field theory
Junyi Zhang#, Zhengqian Cheng
SciPost Physics 17, 062 (2024). Article Link.
Untangling charge-order dependent bulk states from surface effects in a topological kagome metal $\ch{ScV_6Sn_6}$
Zi-Jia Cheng, Sen Shao, Byunghoon Kim, Tyler A Cochran, Xian P Yang, Changjiang Yi, Yu-Xiao Jiang, Junyi Zhang, Md Shafayat Hossain, Subhajit Roychowdhury, Turgut Yilmaz, Elio Vescovo, Alexei Fedorov, Shekhar Chandra, Claudia Felser, Guoqing Chang, M Zahid Hasan
Physical Review B 109, 075150 (2024). Article Link.
2023
Coexistence of Bulk-Nodal and Surface-Nodeless Cooper Pairings in a Superconducting Dirac Semimetal
Xian P. Yang, Yigui Zhong, Sougata Mardanya, Tyler A. Cochran, Ramakanta Chapai, Akifumi Mine, Junyi Zhang#, Jaime Sánchez-Barriga, Zi-Jia Cheng, Oliver J. Clark, Jia-Xin Yin, Joanna Blawat, Guangming Cheng, Ilya Belopolski, Tsubaki Nagashima, Sahand Najafzadeh, Shiyuan Gao, Nan Yao, Arun Bansil, Rongying Jin, Tay-Rong Chang, Shik Shin, Kozo Okazaki, M. Zahid Hasan
Physical Review B 109, 075150 (2023). Article Link.
Visualization of Tunable Weyl Line in A–A Stacking Kagome Magnets
Zi-Jia Cheng, Ilya Belopolski, Hung-Ju Tien, Tyler A. Cochran, Xian P. Yang, Wenlong Ma, Jia-Xin Yin, Dong Chen, Junyi Zhang, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Guangming Cheng, Md. Shafayat Hossain, Qi Zhang, Maksim Litskevich, Yu-Xiao Jiang, Nan Yao, Niels B. M. Schroeter, Vladimir N. Strocov, Biao Lian, Claudia Felser, Guoqing Chang, Shuang Jia, Tay-Rong Chang, M. Zahid Hasan
Advanced Materials 35, 2205927 (2023). Article Link.
2022
Integer quantum Hall effect and enhanced $g$ factor in quantum-confined $\ch{Cd_3As_2}$ films
Run Xiao, Junyi Zhang, Juan Chamorro, Jinwoong Kim, Tyrel M. McQueen, David Vanderbilt, Morteza Kayyalha, Yi Li, Nitin Samarth
Physical Review B 106, L201101 (2022). Article Link.
2021
Signatures of Weyl Fermion Annihilation in a Correlated Kagome Magnet
Ilya Belopolski, Tyler A Cochran, Xiaoxiong Liu, Zi-Jia Cheng, Xian P Yang, Zurab Guguchia, Stepan S Tsirkin, Jia-Xin Yin, Praveen Vir, Gohil S Thakur, Songtian S Zhang, Junyi Zhang, Konstantine Kaznatcheev, Guangming Cheng, Guoqing Chang, Daniel Multer, Nana Shumiya, Maksim Litskevich, Elio Vescovo, Timur K Kim, Cephise Cacho, Nan Yao, Claudia Felser, Titus Neupert, M Zahid Hasan
Physical Review Letter 127, 256403 (2021). Article Link.
2025
[13] Topological excitonic insulator with tunable momentum order
Md Shafayat Hossain, Zi-Jia Cheng, Yu-Xiao Jiang, Tyler A. Cochran, Song-Bo Zhang, Huangyu Wu, Xiaoxiong Liu, Xiquan Zheng, Guangming Cheng, Byunghoon Kim, Qi Zhang, Maksim Litskevich, Junyi Zhang, Jinjin Liu, Jia-Xin Yin, Xian P. Yang, Jonathan D. Denlinger, Massimo Tallarida, Ji Dai, Elio Vescovo, Anil Rajapitamahuni, Nan Yao, Anna Keselman, Yingying Peng, Yugui Yao, Zhiwei Wang, Luis Balicas, Titus Neupert, M. Zahid Hasan
Nature Physics 21, 1250-1259 (2025). Article Link.
[12] Broken symmetries associated with a Kagome chiral charge order
Zi-Jia Cheng, Md Shafayat Hossain, Qi Zhang, Sen Shao, Jinjin Liu, Yilin Zhao, Mohammad Yahyavi, Yu-Xiao Jiang, Jia-Xin Yin, Xian Yang, Yongkai Li, Tyler A. Cochran, Maksim Litskevich, Byunghoon Kim, Junyi Zhang, Yugui Yao, Luis Balicas, Zhiwei Wang, Guoqing Chang, M. Zahid Hasan
Nature Communications 16, 3782 (2025). Article Link.
[11] Type I and type II superconductivity in a quasi-2D Dirac metal
Chris J. Lygouras, Junyi Zhang, Jonah Gautreau, Mathew Pula, Sudarshan Sharma, Shiyuan Gao, Tanya Berry, Thomas Halloran, Peter Orban, Gael Grissonnanche, Juan R. Chamorro, Taketora Mikuri, Dilip K. Bhoi, Maxime A. Siegler, Kenneth J.T. Livi, Yoshiya Uwatoko, Satoru Nakatsuji, B. J. Ramshaw, Yi Li, Graeme M. Luke, Collin L. Broholm, Tyrel M. McQueen
Materials Advances 6, 1685-1694 (2025). Article Link.
2024
[10] Designing phase sensitive probes of monopole superconducting order
Grayson R. Frazier, Junjia Zhang, Junyi Zhang, Xinyu Sun, Yi Li
Physical Review Research 6, 043189 (2024). Article Link.
[9] Density-matrix mean-field theory
Junyi Zhang, Zhengqian Cheng
SciPost Physics 17, 062 (2024). Article Link.
[8] Untangling charge-order dependent bulk states from surface effects in a topological kagome metal $\ch{ScV_6Sn_6}$
Zi-Jia Cheng, Sen Shao, Byunghoon Kim, Tyler A Cochran, Xian P Yang, Changjiang Yi, Yu-Xiao Jiang, Junyi Zhang, Md Shafayat Hossain, Subhajit Roychowdhury, Turgut Yilmaz, Elio Vescovo, Alexei Fedorov, Shekhar Chandra, Claudia Felser, Guoqing Chang, M Zahid Hasan
Physical Review B 109, 075150 (2024). Article Link.
2023
[7] Coexistence of Bulk-Nodal and Surface-Nodeless Cooper Pairings in a Superconducting Dirac Semimetal
Xian P. Yang, Yigui Zhong, Sougata Mardanya, Tyler A. Cochran, Ramakanta Chapai, Akifumi Mine, Junyi Zhang#, Jaime Sánchez-Barriga, Zi-Jia Cheng, Oliver J. Clark, Jia-Xin Yin, Joanna Blawat, Guangming Cheng, Ilya Belopolski, Tsubaki Nagashima, Sahand Najafzadeh, Shiyuan Gao, Nan Yao, Arun Bansil, Rongying Jin, Tay-Rong Chang, Shik Shin, Kozo Okazaki, M. Zahid Hasan
Physical Review B 109, 075150 (2023). Article Link.
[6] Visualization of Tunable Weyl Line in A–A Stacking Kagome Magnets
Zi-Jia Cheng, Ilya Belopolski, Hung-Ju Tien, Tyler A. Cochran, Xian P. Yang, Wenlong Ma, Jia-Xin Yin, Dong Chen, Junyi Zhang, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Guangming Cheng, Md. Shafayat Hossain, Qi Zhang, Maksim Litskevich, Yu-Xiao Jiang, Nan Yao, Niels B. M. Schroeter, Vladimir N. Strocov, Biao Lian, Claudia Felser, Guoqing Chang, Shuang Jia, Tay-Rong Chang, M. Zahid Hasan
Advanced Materials 35, 2205927 (2023). Article Link.
2022
[5] Integer quantum Hall effect and enhanced $g$ factor in quantum-confined $\ch{Cd_3As_2}$ films
Run Xiao, Junyi Zhang, Juan Chamorro, Jinwoong Kim, Tyrel M. McQueen, David Vanderbilt, Morteza Kayyalha, Yi Li, Nitin Samarth
Physical Review B 106, L201101 (2022). Article Link.
2021
[4] Signatures of Weyl Fermion Annihilation in a Correlated Kagome Magnet
Ilya Belopolski, Tyler A Cochran, Xiaoxiong Liu, Zi-Jia Cheng, Xian P Yang, Zurab Guguchia, Stepan S Tsirkin, Jia-Xin Yin, Praveen Vir, Gohil S Thakur, Songtian S Zhang, Junyi Zhang, Konstantine Kaznatcheev, Guangming Cheng, Guoqing Chang, Daniel Multer, Nana Shumiya, Maksim Litskevich, Elio Vescovo, Timur K Kim, Cephise Cacho, Nan Yao, Claudia Felser, Titus Neupert, M Zahid Hasan
Physical Review Letter 127, 256403 (2021). Article Link.
2020
[3] Non-Hermitian topological metamaterials with odd elasticity
Di Zhou, Junyi Zhang
Physical Review Research 2, 023173 (2020). Article Link.
2017
[2] A minimal double quantum dot
Hao Zheng, Junyi Zhang, Richard Berndt
Scientific Reports 7, 10764 (2017). Article Link.
2016
[1] Creating fractional quantum Hall states with atomic clusters using light-assisted insertion of angular momentum
Junyi Zhang, Jérôme Beugnon, Sylvain Nascimbene
Physical Review A 94, 043610 (2016). Article Link.
Phase-sensitive evidence for $2 \times 2$ pair density wave in a kagome superconductor
Xiao-Yu Yan, Guowei Liu, Hanbin Deng, Xu Xitong, Haiyang Ma, Qin Hailang, Junyi Zhang, Yuanyuan Zhao, Haitian Zhao, Zhe Qu, Yigui Zhong, Kozo Okazaki, Xiquan Zheng, Yingying Peng, Zurab Guguchia, X. X. Wu, Qianghua Wang, Fan X-H, Wei Song Song, Gao M-W, Hendrik Hohmann, Matteo Durrnagel, Ronny Thomale, Jia-Xin Yin
arXiv:2510.10958. Article Link.
Spontaneous $\pi$ flux trapping in granular rings of unconventional superconductors
Junyi Zhang, Yi Li
arXiv:2509.24581. Article Link.
Anisotropic Josephson coupling of $d$-vectors arising from interplay with frustrated spin textures
Grayson Frazier, Junyi Zhang, Yi Li
arXiv:2506.15661. Article Link.
Phase Diagram and Spectroscopic Signatures of Supersolids in Quantum Ising Magnet $\ch{K_2Co(SeO_3)_2}$
Tong Chen, Alireza Ghasemi, Junyi Zhang, Liyu Shi, Zhenisbek Tagay, Lei Chen, Eun-Sang Choi, Marcelo Jaime, Minseong Lee, Yiqing Hao, Huibo Cao, Barry Winn, Ruidan Zhong, Xianghan Xu, NP Armitage, Robert Cava, Collin Broholm
arXiv:2402.15869. Article Link.
Testing Case Number of Coronavirus Disease 2019 in China with Newcomb-Benford Law
Junyi Zhang
arXiv:2002.05695. Article Link.
Dipolar Dimer Liquid
Junyi Zhang
arXiv:1902.08890. Article Link.
EIT-Enhanced Coupled-Resonance Spectroscopy
Junyi Zhang
arXiv:1707.09559. Article Link.
Generating Steady Topologically Non-Trivial Artificial Spin Texture with Cold Atoms
Junyi Zhang
arXiv:1409.0164. Article Link.
Artificial Gauge Fields and Spin-Orbit Couplings in Cold Atom Systems
Junyi Zhang
arXiv:1312.7486. Article Link.
Anomalous Boundary Mechanics Induced by Nonlinear Weyl Normal Modes
Di Zhou, Junyi Zhang, Yugui Yao
Article Link.
Study of Phases of Matter: Dipolar Dimer Liquid and Topological Metamaterials with Odd Elasticity
Junyi Zhang
Ph.D. thesis
Advisor: Prof. F. Duncan M. Haldane
Princeton University, 2021. Article Link.
Characterization of focus tunable lenses for atomic transport
Junyi Zhang
Master thesis
Advisors: Prof. Christian Groß and Prof. Immanuel Bloch
Max-Planck-Institut für Quantenoptik and École normale supérieure, 2015.
Quantum transport with Green’s function method
Junyi Zhang
Undergraduate dissertation
Advisors: Prof. Yanxia Xing and Prof. Xincheng Xie
Peking University, 2013.
Surface corrections to chiral anomaly in Weyl semimetals
Junyi Zhang
Prethesis report
Princeton University, 2017.
Diode laser for coupled-resonance spectroscopy of the strontium transitions at 679 nm and 707 nm
Junyi Zhang
Experimental project report
Princeton University, 2016.
Cooling, trapping and manipulating atoms: a new setup for ultracold Bose gases and preparing quantum Hall states
Junyi Zhang
M1 intern report
Advisors: Prof. Jérôme Beugnon, Prof. Sylvain Nascimbène and Prof. Jean Dalibard
Laboratoire Kastler Brossel, École normale supérieure and Collège de France, 2014.