Lan Zhou

Distillation of logic-qubit entanglement assisted with cross-Kerr nonlinearity

2016 · arXiv (Cornell University)

Logic-qubit entanglement has attracted much attention in both quantum communication and quantum computation. Here, we present an efficient protocol to distill the logic-qubit entanglement with the help of cross-Kerr nonlinearity. This protocol not only can …

Experimental study of modified Tavis-Cummings model with directly-coupled superconducting artificial atoms

2023 · Optics Express

The Tavis-Cummings model is intensively investigated in quantum optics and has important applications in generation of multi-atom entanglement. Here, we employ a superconducting circuit quantum electrodynamic system to study a modified Tavis-Cummings model with directly-coupled …

Fully passive quantum key distribution with parametric down-conversion source

2025 · arXiv (Cornell University)

The fully passive source is capable of passively generating decoy states and performing passive encoding simultaneously, avoiding the side-channel risks caused by active modulation operations at the source end, thus effectively enhance the security in …

The glare blinding attack strategy in quantum secret sharing system

2025 · Optics Letters

Quantum secret sharing (QSS) is a typical multipartite quantum cryptographic primitive. Although QSS is theoretically secure, imperfect experimental devices would threaten its security. The glare blinding attack is a strong attack against practical single-photon detectors. …