Publications

For research highlights organized by topic, please visit our Research Directions page.

For a full list of publications and patents see below or go to Google Scholar.

Full List of Publications

Designing a nearly optimal quantum algorithm for linear differential equations via lindbladians
Z.-X. Shang, N. Guo, D. An, and Q. Zhao
Phys. Rev. Lett., vol. 135, p. 120604, Sep 2025
Detecting entanglement and nonlocality with minimum observable length
Z. Chen, F. Shi, and Q. Zhao
New Journal of Physics, vol. 27, no. 9, p. 094503, 2025
Quantum-trajectory-inspired lindbladian simulation
S. Peng, X. Sun, Q. Zhao, and H. Zhou
arXiv:2408.10505, PRX Quantum Accepted, 2025
Observable-driven speed-ups in quantum simulations
W. Yu, J. Xu, and Q. Zhao
Communications Physics, vol. 8, no. 1, p. 340, 2025
Entanglement accelerates quantum simulation
Q. Zhao, Y. Zhou, and A. M. Childs
Nature Physics, vol. 21, p. 1338–1345, 2025
Simple and high-precision hamiltonian simulation by compensating trotter error with linear combination of unitary operations
P. Zeng, J. Sun, L. Jiang, and Q. Zhao
PRX Quantum, vol. 6, p. 010359, Mar 2025
Quantum differential equation solvers: Limitations and fast-forwarding
D. An, J.-P. Liu, D. Wang, and Q. Zhao
Communications in Mathematical Physics, vol. 406, no. 8, p. 189, 2025
Entanglement detection length of multipartite quantum states
F. Shi, L. Chen, G. Chiribella, and Q. Zhao
Phys. Rev. Lett., vol. 134, p. 050201, Feb 2025
Bounds on k-uniform quantum states
F. Shi, Y. Ning, Q. Zhao, and X. Zhang
IEEE Transactions on Information Theory, 2024
General communication enhancement via the quantum switch
Z. Wu, J. Fullwood, Z. Ma, S.-Q. Zhou, Q. Zhao, and G. Chiribella
Phys. Rev. A, vol. 111, p. 012605, Jan 2025
Efficient and practical quantum compiler towards multi-qubit systems with deep reinforcement learning
C. Qiuhao, Y. Du, Q. Zhao, Y. Jiao, X. Lu, and X. Wu
Quantum Science and Technology, 2024
Quantification of entanglement and coherence with purity detection
H. Lu, T. Zhang, G. Smith, J. Smolin, L. Liu, X.-J. Peng, Q. Zhao, D. Girolami, X. Ma, and X. Yuan
npj Quantum Information, accepted, 2024
Graph-theoretic characterization of unextendible product bases
F. Shi, G. Bai, X. Zhang, Q. Zhao, and G. Chiribella
Phys. Rev. Res., vol. 5, p. 033144, Aug 2023
Hamiltonian simulation with random inputs
Q. Zhao, Y. Zhou, A. F. Shaw, T. Li, and A. M. Childs
Phys. Rev. Lett., vol. 129, p. 270502, Dec 2022. QIP 2022 contributed talk
Constructing multipartite bell inequalities from stabilizers
Q. Zhao and Y. Zhou
Phys. Rev. Res., vol. 4, p. 043215, Dec 2022
Unextendible and uncompletable product bases in every bipartition
F. Shi, M.-S. Li, X. Zhang, and Q. Zhao
New Journal of Physics, vol. 24, no. 11, p. 113025, nov 2022
A scheme to create and verify scalable entanglement in optical lattice
Y. Zhou, B. Xiao, M.-D. Li, Q. Zhao, Z.-S. Yuan, X. Ma, and J.-W. Pan
npj Quantum Information, vol. 8, no. 1, pp. 1–9, 2022
Closing the locality and detection loopholes in multiparticle entanglement self-testing
D. Wu, Q. Zhao (Co-first author), C. Wang, L. Huang, Y.-F. Jiang, B. Bai, Y. Zhou, X.-M. Gu, F.-M. Liu, Y.-Q. Mao, Q.-C. Sun, M.-C. Chen, J. Zhang, C.-Z. Peng, X.-B. Zhu, Q. Zhang, C.-Y. Lu, and J.-W. Pan
Phys. Rev. Lett., vol. 128, p. 250401, Jun 2022
Robust self-testing of multiparticle entanglement
D. Wu, Q. Zhao (Co-first author), X.-M. Gu, H.-S. Zhong, Y. Zhou, L.-C. Peng, J. Qin, Y.-H. Luo, K. Chen, L. Li, N.-L. Liu, C.-Y. Lu, and J.-W. Pan
Phys. Rev. Lett., vol. 127, p. 230503, Dec 2021
Exploiting anticommutation in Hamiltonian simulation
Q. Zhao and X. Yuan
Quantum, vol. 5, p. 534, Aug. 2021
Quantum teleportation of physical qubits into logical code spaces
Y.-H. Luo, M.-C. Chen, M. Erhard, H.-S. Zhong, D. Wu, H.-Y. Tang, Q. Zhao, X.-L. Wang, K. Fujii, L. Li, N.-L. Liu, K. Nemoto, W. J. Munro, C.-Y. Lu, A. Zeilinger, and J.-W. Pan
Proceedings of the National Academy of Sciences, vol. 118, no. 36, 2021
Quantum simulation with hybrid tensor networks
X. Yuan, J. Sun, J. Liu, Q. Zhao, and Y. Zhou
Phys. Rev. Lett., vol. 127, p. 040501, Jul 2021
Universal and operational benchmarking of quantum memories
X. Yuan, Y. Liu, Q. Zhao, B. Regula, J. Thompson, and M. Gu
npj Quantum Information, vol. 7, no. 1, pp. 1–8, 2021
Entanglement-free witnessing of quantum incompatibility in a high-dimensional system
D. Wu, Q. Zhao (Co-first author), Y.-H. Luo, H.-S. Zhong, L.-C. Peng, K. Chen, P. Xue, L. Li, N.-L. Liu, C.-Y. Lu, and J.-W. Pan
Phys. Rev. Research, vol. 3, p. 023017, Apr 2021
Experimental realization of device-independent quantum randomness expansion
M.-H. Li, X. Zhang, W.-Z. Liu, S.-R. Zhao, B. Bai, Y. Liu, Q. Zhao, Y. Peng, J. Zhang, Y. Zhang, W. J. Munro, X. Ma, Q. Zhang, J. Fan, and J.-W. Pan
Phys. Rev. Lett., vol. 126, p. 050503, Feb 2021
Experimental exploration of five-qubit quantum error correcting code with superconducting qubits
M. Gong, X. Yuan, S. Wang, Y. Wu, Y. Zhao, C. Zha, S. Li, Z. Zhang, Q. Zhao, Y. Liu, F. Liang, J. Lin, Y. Xu, H. Deng, H. Rong, H. Lu, S. C. Benjamin, C.-Z. Peng, X. Ma, Y.-A. Chen, X. Zhu, and J.-W. Pan
National Science Review, 01 2021, nwab011
Measurement-device-independent entanglement witness of tripartite entangled states and its applications
Z.-D. Li, Q. Zhao (Co-first author), R. Zhang, L.-Z. Liu, X.-F. Yin, X. Zhang, Y.-Y. Fei, K. Chen, N.-L. Liu, F. Xu, Y.-A. Chen, L. Li, and J.-W. Pan
Phys. Rev. Lett., vol. 124, p. 160503, Apr 2020
Randomness expansion secured by quantum contextuality
M. Um, Q. Zhao (Co-first author), J. Zhang, P. Wang, Y. Wang, M. Qiao, H. Zhou, X. Ma, and K. Kim
Phys. Rev. Applied, vol. 13, p. 034077, Mar 2020
Simultaneous certification of entangled states and measurements in bounded dimensional semiquantum games
X. Zhang and Q. Zhao
Phys. Rev. Research, vol. 2, p. 033400, Sep 2020
High-threshold code for modular hardware with asymmetric noise
X. Xu, Q. Zhao, X. Yuan, and S. C. Benjamin
Phys. Rev. Applied, vol. 12, p. 064006, Dec 2019
Theory of variational quantum simulation
X. Yuan, S. Endo, Q. Zhao, Y. Li, and S. C. Benjamin
Quantum, vol. 3, p. 191, Oct. 2019
One-shot coherence distillation with catalysts
S. Chen, X. Zhang, Y. Zhou, and Q. Zhao
Phys. Rev. A, vol. 100, p. 042323, Oct 2019
Detecting multipartite entanglement structure with minimal resources
Y. Zhou, Q. Zhao, X. Yuan, and X. Ma
npj Quantum Information, vol. 5, p. 83, 2019
Quantum coherence and intrinsic randomness
X. Yuan, Q. Zhao, D. Girolami, and X. Ma
Advanced Quantum Technologies, vol. 0, no. 0, p. 1900053
Efficient and robust detection of multipartite greenberger-horne-zeilinger-like states
Q. Zhao, G. Wang, X. Yuan, and X. Ma
Phys. Rev. A, vol. 99, p. 052349, May 2019
Compatibility of causal hidden-variable theories with a delayed-choice experiment
H.-L. Huang, Y.-H. Luo, B. Bai, Y.-H. Deng, H. Wang, Q. Zhao, H.-S. Zhong, Y.-Q. Nie, W.-H. Jiang, X.-L. Wang, J. Zhang, L. Li, N.-L. Liu, T. Byrnes, J. P. Dowling, C.-Y. Lu, and J.-W. Pan
Phys. Rev. A, vol. 100, p. 012114, Jul 2019
One-shot coherence distillation: Towards completing the picture
Q. Zhao, Y. Liu, X. Yuan, E. Chitambar, and A. Winter
IEEE Transactions on Information Theory, vol. 65, no. 10, pp. 6441–6453, 2019
Mitigating algorithmic errors in a hamiltonian simulation
S. Endo, Q. Zhao, Y. Li, S. Benjamin, and X. Yuan
Phys. Rev. A, vol. 99, p. 012334, Jan 2019
Device-independent quantum random-number generation
Y. Liu, Q. Zhao, M.-H. Li, J.-Y. Guan, Y. Zhang, B. Bai, W. Zhang, W.-Z. Liu, C. Wu, X. Yuan, H. Li, W. J. Munro, Z. Wang, L. You, J. Zhang, X. Ma, J. Fan, Q. Zhang, and J.-W. Pan
Nature, vol. 562, no. 7728, p. 548, 2018
Test of local realism into the past without detection and locality loopholes
M.-H. Li, C. Wu, Y. Zhang, W.-Z. Liu, B. Bai, Y. Liu, W. Zhang, Q. Zhao, H. Li, Z. Wang, L. You, W. J. Munro, J. Yin, J. Zhang, C.-Z. Peng, X. Ma, Q. Zhang, J. Fan, and J.-W. Pan
Phys. Rev. Lett., vol. 121, p. 080404, Aug 2018
Entanglement structure: Entanglement partitioning in multipartite systems and its experimental detection using optimizable witnesses
H. Lu, Q. Zhao (Co-first author), Z.-D. Li, X.-F. Yin, X. Yuan, J.-C. Hung, L.-K. Chen, L. Li, N.-L. Liu, C.-Z. Peng, Y.-C. Liang, X. Ma, Y.-A. Chen, and J.-W. Pan
Phys. Rev. X, vol. 8, p. 021072, Jun 2018
Quantum coherence via conditional entropy
Y. Liu, Q. Zhao (Co-first author), and X. Yuan
Journal of Physics A Mathematical and Theoretical, vol. 51, no. 41, p. 414018, 2018
One-shot coherence dilution
Q. Zhao, Y. Liu, X. Yuan, E. Chitambar, and X. Ma
Phys. Rev. Lett., vol. 120, p. 070403, Feb 2018
High-speed device-independent quantum random number generation without a detection loophole
Y. Liu, X. Yuan, M.-H. Li, W. Zhang, Q. Zhao, J. Zhong, Y. Cao, Y.-H. Li, L.-K. Chen, H. Li, T. Peng, Y.-A. Chen, C.-Z. Peng, S.-C. Shi, Z. Wang, L. You, X. Ma, J. Fan, Q. Zhang, and J.-W. Pan
Phys. Rev. Lett., vol. 120, p. 010503, Jan 2018
Polynomial measure of coherence
Y. Zhou, Q. Zhao, X. Yuan, and X. Ma
New Journal of Physics, vol. 19, no. 12, p. 123033, 2017
Experimental blind quantum computing for a classical client
H.-L. Huang, Q. Zhao, X. Ma, C. Liu, Z.-E. Su, X.-L. Wang, L. Li, N.-L. Liu, B. C. Sanders, C.-Y. Lu, and J.-W. Pan
Phys. Rev. Lett., vol. 119, p. 050503, Aug 2017
Experimental measurement-device-independent quantum digital signatures over a metropolitan network
H.-L. Yin, W.-L. Wang, Y.-L. Tang, Q. Zhao, H. Liu, X.-X. Sun, W.-J. Zhang, H. Li, I. V. Puthoor, L.-X. You, E. Andersson, Z. Wang, Y. Liu, X. Jiang, X. Ma, Q. Zhang, M. Curty, T.-Y. Chen, and J.-W. Pan
Phys. Rev. A, vol. 95, p. 042338, Apr 2017
Entanglement swapping with independent sources over an optical-fiber network
Q.-C. Sun, Y.-L. Mao, Y.-F. Jiang, Q. Zhao, S.-J. Chen, W. Zhang, W.-J. Zhang, X. Jiang, T.-Y. Chen, L.-X. You, L. Li, Y.-D. Huang, X.-F. Chen, Z. Wang, X. Ma, Q. Zhang, and J.-W. Pan
Phys. Rev. A, vol. 95, p. 032306, Mar 2017
Improved key-rate bounds for practical decoy-state quantum-key-distribution systems
Z. Zhang, Q. Zhao, M. Razavi, and X. Ma
Phys. Rev. A, vol. 95, p. 012333, Jan 2017
Efficient measurement-device-independent detection of multipartite entanglement structure
Q. Zhao, X. Yuan, and X. Ma
Phys. Rev. A, vol. 94, p. 012343, Jul 2016
Performance of device-independent quantum key distribution
Z. Cao, Q. Zhao, and X. Ma
Phys. Rev. A, vol. 94, p. 012319, Jul 2016
Measurement-device-independent quantum key distribution over untrustful metropolitan network
Y.-L. Tang, H.-L. Yin, Q. Zhao, H. Liu, X.-X. Sun, M.-Q. Huang, W.-J. Zhang, S.-J. Chen, L. Zhang, L.-X. You, Z. Wang, Y. Liu, C.-Y. Lu, X. Jiang, X. Ma, Q. Zhang, T.-Y. Chen, and J.-W. Pan
Phys. Rev. X, vol. 6, p. 011024, Mar 2016
Clauser-horne bell test with imperfect random inputs
X. Yuan, Q. Zhao, and X. Ma
Phys. Rev. A, vol. 92, p. 022107, Aug 2015

Patents

Xiongfeng Ma and Qi Zhao
Measurement-device-independent quantum key distribution with biasedbasis choice
Patent number: ZL201621455743.9

Xiongfeng Ma and Qi Zhao
Quantum key distribution based on two-way classical communication
Patent number: ZL201621440463.0

Xiongfeng Ma and Qi Zhao
Quantum key distribution data postprocessing for detector efficiencymismatc
Patent number: CN105049200A