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quant-ph2009★ 13 cited
Genuine tripartite entanglement in quantum brachistochrone evolution of a three-qubit system
Bao-Kui Zhao, Fu-Guo Deng, Feng-Shou Zhang +1
We explore the connection between quantum brachistochrone (time-optimal) evolution of a three-qubit system and its residual entanglement called three-tangle. The result shows that…
quant-ph2008
Stable and deterministic quantum key distribution based on differential phase shift
Bao-Kui Zhao, Yu-Bo Sheng, Fu-Guo Deng +2
We present a stable and deterministic quantum key distribution (QKD) system based on differential phase shift. With three cascaded Mach-Zehnder interferometers with different arm-l…