Author

Qiongyi He

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Preprint Aug 2026

Entanglement certification via causal-order interferometry in a quantum switch

Entanglement certification is often performed on states that have already undergone noisy transmission or processing. Noise can reduce the surviving entanglement and can also cause a given criterion to fail even when entanglement remains. In this context, the quantum switch, a paradigmatic realization of indefinite cau...

Haojie Wang, Shuheng Liu, Qiongyi He · 1 citation

Preprint Aug 2026

Projection measurement of the comb basis through free-electron-photon interactions

Free electrons, driven by rapid advances in photon-induced near-field electron microscopy, have emerged as a promising platform for quantum information processing, including quantum computing and quantum sensing. However, conventional measurements that rely on the electron energy loss spectrum (EELS) are inherently des...

Zi-Hang Zou, F. Sun, Yun-Quan Liu et al. · 0 citations