Proposal for a loophole-free Bell test based on spin-photon interactions in cavities
Proposal for a loophole-free Bell test based on spin-photon interactions in cavities
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DOI：
10.1088/1367-2630/15/10/105006
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发表时间：
2013-10-08
影响因子：
3.3
通讯作者：
Rarity, John G.
中科院分区：
文献类型：
--
作者：
Brunner, Nicolas;Young, Andrew B.;Rarity, John G.
我们提出了一种方案来证明无漏洞的Bell不等式破坏，其中光子对之间的纠缠通过腔QED相互作用转移到固态(自旋)量子比特。由于这种传输可以以一种预知的方式实现，所以我们的方案基本上对信道上的损耗不敏感，并且也工作在弱耦合区域。我们考虑了使用单原子、色心和量子点腔系统的潜在实验实现。最后，我们的方案有望实现基于非局域性的量子信息协议。这里我们讨论了一种与设备无关的量子密钥分发的可能实现。
We present a scheme to demonstrate loophole-free Bell inequality violation where the entanglement between photon pairs is transferred to solid state (spin) qubits mediated by cavity QED interactions. As this transfer can be achieved in a heralded way, our scheme is basically insensitive to losses on the channel, and works also in the weak coupling regime. We consider potential experimental realizations using single atom, colour centre and quantum dot cavity systems. Finally our scheme appears to be promising for implementing quantum information protocols based on non-locality. Here we discuss a possible implementation of device-independent quantum key distribution.