Works

Selected Works

Theory

💫 Device-Independent Quantum Key Distribution Based on the Mermin-Peres Magic Square Game

Authors:: Y.-Z. Zhen, Y. Mao, Y.-Z. Zhang, F. Xu, and B. C. Sanders
Venue:: Phys. Rev. Lett. 131, 080801 (2023) → Read Paper
Summary:: Proposes a DIQKD protocol based on the Mermin-Peres magic square game, a "pseudotelepathy" nonlocal game. The protocol achieves a higher key rate than standard CHSH-based DIQKD and reveals the cryptographic advantage of quantum pseudotelepathy.

Theory

♨️ Universal Bound on Energy Cost of Bit Reset in Finite Time

Authors:: Y.-Z. Zhen, D. Egloff, K. Modi, and O. Dahlsten
Venue:: Phys. Rev. Lett. 127, 190602 (2021) → Read Paper
Summary:: Establishes a universal trade-off between the energy cost and the time required for bit reset. Shows that the work penalty scales inversely with time for fast operations, bridging the gap between Landauer's principle and finite-time thermodynamics.

Exp. Collab.

➿ Mao et al., Strong Coupling in a Three-Mode Superconducting-Spin Hybrid Quantum System (2026) ▶ Details

Authors:: Y. Mao, H.-Y. Ren, Z.-Y. Liu, Y.-Z. Zhen, T. Rong, T. Jiang, Z. Chen, Z.-H. Yuan, W.-H. Qin, X. Zhang, X. Liu, M. Gong, K. Nemoto, W. J. Munro, and J. Majer
Venue:: Phys. Rev. Research 8, 023343 (2026) → Read Paper
Summary:: Experimental observation of strong-coupling hybrid quantum systems combining superconducting resonator, transmon and NV⁻-center spin ensembles.

Exp. Collab.

💫 Liu et al., Long-lived Remote Ion-ion Entanglement for Scalable Quantum Repeaters. ▶ Details

Authors:: W.-Z. Liu, Y.-B. Zhou, J.-P. Chen, B. Wang, A. Teng, X.-W. Han, G.-C. Liu, Z.-J. Zhang, Y. Yang, F.-G. Liu, C.-H. Xue, B.-W. Yang, J. Yang, C. Zeng, D.-R. Pan, M.-Y. Zheng, X. Zhang, S. Cao, Y.-Z. Zhen, Y. Xiao, H. Li, L.-X. You, X. Ma, Q. Zhao, F. Xu, Y. Wang, Y. Wan, Q. Zhang, and J.-W. Pan
Venue:: Nature 652, 51–57 (2026) → Read Paper
Summary:: Experimental realization of long-lived entanglement in ion-based quantum links for scalable quantum repeaters.

Exp. Collab.

💫 Lu et al., Device-Independent Quantum Key Distribution over 100 km with Single Atoms (2026) ▶ Details

Authors:: B.-W. Lu, C.-W. Yang, R.-Q. Wang, B.-F. Gao, Y.-Z. Zhen, Z.-G. Wang, J.-K. Shi, Z.-Q. Ren, T. A. Hahn, E. Y.-Z. Tan, X.-P. Xie, M.-Y. Zheng, X. Jiang, J. Zhang, F. Xu, Q. Zhang, X.-H. Bao, and J.-W. Pan
Venue:: Science 391, 592 (2026) → Read Paper
Summary:: Experimental demonstration of long-distance entanglement distribution between single atoms, supporting device-independent quantum communication over 100 km.

Entropy Accumulation Theorem: From Bell inequality to quantum boundaries

Communication Technology and Artificial Intelligence Academic Forum (Nanjing, 2026)

Links: TBA

Quantum Probabilities, Nonlocality, and their Applications in Quantum Cryptography

Weekly Seminar at Wilczek Quantum Center (Shanghai, 2025)

Links: TBA

Towards Realization of Hybrid Quantum System with Superconducting Circuits and Diamond Spin Ensemble

Joint talk with Dr. Yingqiu Mao, at OIST (Okinawa, 2025)

Links: TBA