Quantum repeater with Rydberg-blocked atomic ensembles in fiber-coupled cavities
Quantum repeater with Rydberg-blocked atomic ensembles in fiber-coupled cavities
复制标题
DOI：
10.1103/physreva.85.042324
复制
发表时间：
2012-04-24
影响因子：
2.9
通讯作者：
Molmer, K.
中科院分区：
文献类型：
--
作者：
Brion, E.;Carlier, F.;Molmer, K.
我们提出并分析了一种量子中继器结构，其中光腔中的里德堡阻塞原子系综由光纤连接。纠缠的产生，交换和纯化是通过集体激光操纵的合奏和光子传输。纠缠的成功传输和存储是由电离事件而不是以前的提议中使用的光子探测信号来预示的。我们演示了如何高电荷检测效率允许缩短平均纠缠产生时间，我们分析了我们的方案与合奏Cs原子的实施。
We propose and analyze a quantum repeater architecture in which Rydberg-blocked atomic ensembles inside optical cavities are linked by optical fibers. Entanglement generation, swapping, and purification are achieved through collective laser manipulations of the ensembles and photon transmission. Successful transmission and storage of entanglement are heralded by ionization events rather than by photon detection signals used in previous proposals. We demonstrate how the high charge detection efficiency allows for a shortened average entanglement generation time, and we analyze an implementation of our scheme with ensembles of Cs atoms.