量子光学学报, 2014, 20 (1): 35, 网络出版: 2014-03-11
通过量子噪声信道之后Werner态的纠缠特性研究
Entanglement Properties of Werner State through the Amplitude Damping and Phase Damping Channels
并发度 Werner态 纠缠突然死亡 量子噪声信道 concurrence Werner state sudden death of entanglement noisy quantum channels
摘要
利用并发度作为纠缠的度量研究了Werner态通过量子噪声信道(包括振幅和相位阻尼信道)之后的纠缠动力学性质,给出了Werner态通过量子噪声信道之后并发度的解析表达式,获得了纠缠突然死亡的参数条件。
Abstract
We investigated the entanglement properties of Werner state through the noisy quantum channels (including amplitude and phase damping channels) by employing the concurrence.We derived the analytical expression of concurrence for Werner state under the noisy quantum channels.The condition for sudden death of entanglement was obtained.
廖庆洪, 刘欣, 刘树田. 通过量子噪声信道之后Werner态的纠缠特性研究[J]. 量子光学学报, 2014, 20(1): 35. LIAO Qing-hong, LIU Xin, LIU Shu-tian. Entanglement Properties of Werner State through the Amplitude Damping and Phase Damping Channels[J]. Acta Sinica Quantum Optica, 2014, 20(1): 35.
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