Author

Xingjian Zhang

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Preprint Oct 2026

Entanglement detection in dynamical quantum systems

Quantum science and engineering increasingly target the exploitation and control of large-scale dynamical systems. As system size grows, novel phenomena and quantum advantages emerge, but the resulting many-body dynamics become correspondingly harder to monitor and characterize. In particular, the underlying Hamiltonia...

Xing-Jian Zhang, Jia-Yi Wu, Jue Xu et al. · 0 citations

Preprint Aug 2026

Size-Independent Robustness in Multipartite Bell Self-Testing

Practical robust self-testing of multipartite entanglement has so far been restricted to small-scale systems due to error bounds that degrade severely with system size. In this work, we establish multipartite self-testing with robustness independent of the size of the quantum network. We derive a fully analytic, device...

Shen Cao, Xing-Jian Zhang, Fei Shi et al. · 0 citations

Preprint Sep 2026

Exponential speedup of polarization stabilization for long distance DWDM quantum networks

Fibre-based quantum networks distributing polarization entanglement require a stable and uninterrupted transmission basis for reliable operation. Bright classical reference light enables rapid polarization feedback but can introduce noise into quantum channels. Entangled-photon-based feedback avoids this noise, but typ...

Jin-Yi Du, En-Teng Lim, Xing-Jian Zhang et al. · 0 citations