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Experimental Quantum Teleportation of a Two-Qubit Composite System
Qiang Zhang, Alexander Goebel, Claudia Wagenknecht +6
Quantum teleportation, a way to transfer the state of a quantum system from one location to another, is central to quantum communication and plays an important role in a number of…
Robust creation of entanglement between remote memory qubits
Bo Zhao, Zeng-Bing Chen, Yu-Ao Chen +2
In this Letter we propose a robust quantum repeater architecture building on the original DLCZ protocol [L.M. Duan \textit{et al.}, Nature \textbf{414}, 413 (2001)]. The architectu…
Fault-tolerant quantum repeater with atomic ensembles and linear optics
Zeng-Bing Chen, Bo Zhao, Yu-Ao Chen +2
We present a detailed analysis of a new robust quantum repeater architecture building on the original DLCZ protocol [L.M. Duan \textit{et al.}, Nature (London) \textbf{414}, 413 (2…
Experimental Violation of Bell Inequality beyond Cirel'son's Bound
Yu-Ao Chen, Tao Yang, An-Ning Zhang +3
The correlations between two qubits belonging to a three-qubit system can violate the Clauser-Horne-Shimony-Holt-Bell inequality beyond Cirel'son's bound [A. Cabello, Phys. Rev. Le…
A Deterministic and Storable Single-Photon Source Based on Quantum Memory
Shuai Chen, Yu-Ao Chen, Thorsten Strassel +4
A single photon source is realized with a cold atomic ensemble (Rb atoms). In the experiment, single photons, which is initially stored in an atomic quantum memory generated…
Beamsplitting attack to the revised KKKP protocol and a possible solution
Xiang-Bin Wang, Qiang Zhang, Yu-Ao Chen +3
We show that the revised KKKP protocol proposed by Kye and Kim [Phys. Rev. Lett. 95,040501(2005)] is still insecure with coherent states by a type of beamsplitting attack. We then…