Nonlocality of W and Dicke states subject to losses
Nonlocality of W and Dicke states subject to losses
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DOI：
10.1103/physreva.91.032108
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发表时间：
2015-03-13
影响因子：
2.9
通讯作者：
Liang, Yeong-Cherng
中科院分区：
文献类型：
--
作者：
Barnea, Tomer Jack;Puetz, Gilles;Liang, Yeong-Cherng
我们讨论 W 州和 Dicke 州遭受损失的非定域性。我们考虑两种噪声模型，即激发损失和粒子损失，并研究可以容忍多少损失以使最终状态保持非局域性。这导致了迪克态非定域性的鲁棒性测量，并具有清晰的物理解释。我们的结果表明，迪克态的非局域性和纠缠之间的关系不是单调的。
We discuss the nonlocality of W and Dicke states subject to losses. We consider two noise models, namely, loss of excitations and loss of particles, and investigate how much loss can be tolerated such that the final state remains nonlocal. This leads to a measure of robustness of the nonlocality of Dicke states, with a clear physical interpretation. Our results suggest that the relation between nonlocality and entanglement of Dicke states is not monotonic.