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10 papers · 2 filters
Breaking the Rate-Loss Bound of Quantum Key Distribution with Asynchronous Two-Photon Interference
Yuan-Mei Xie, Yu-Shuo Lu, Chen-Xun Weng +7
Twin-field quantum key distribution can overcome the secret key capacity of repeaterless quantum key distribution via single-photon interference. However, to compensate for the cha…
Experimental quantum advantage with quantum coupon collector
Min-Gang Zhou, Xiao-Yu Cao, Yu-Shuo Lu +6
An increasing number of communication and computational schemes with quantum advantages have recently been proposed, which implies that quantum technology has fertile application p…
Geometric phase and non-adiabatic resonance of the Rabi model
Sijiang Liu, Zhiguo Lü, Hang Zheng
We investigate the effects of counterrotating terms on geometric phase and its relation to the resonance of the Rabi model. We apply the unitary transformation with a single parame…
Finite-key Analysis for Quantum Conference Key Agreement with Asymmetric Channels
Zhao Li, Xiao-Yu Cao, Chen-Long Li +4
As an essential ingredient of quantum networks, quantum conference key agreement (QCKA) provides unconditional secret keys among multiple parties, which enables only legitimate use…
Coherent one-way quantum conference key agreement based on twin field
Xiao-Yu Cao, Jie Gu, Yu-Shuo Lu +2
Quantum conference key agreement (CKA) enables key sharing among multiple trusted users with information-theoretic security. Currently, the key rates of most quantum CKA protocols…
Experimental Quantum Target Detection Approaching the Fundamental Helstrom Limit
Feixiang Xu, Xiao-Ming Zhang, Liang Xu +3
Quantum target detection is an emerging application that utilizes entanglement to enhance the sensing of the presence of an object. Although several experimental demonstrations for…