Tunable entanglement, antibunching and saturation effects in dipole blockade
Tunable entanglement, antibunching and saturation effects in dipole blockade
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DOI：
10.1103/physreva.81.013837
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发表时间：
2009-08
影响因子：
2.9
通讯作者：
J. Gillet;G. Agarwal;T. Bastin
中科院分区：
文献类型：
--
作者：
J. Gillet;G. Agarwal;T. Bastin
本文建立了一个模型，定量分析了偶极阻塞效应对两个二能级原子系统在激光场驱动下的动力学演化的影响。考虑了原子样品的多重激发。我们发现在偶极封锁制度非常大的并发。我们进一步发现，纠缠可以通过改变激发激光的强度来调节。我们还报告了一种方法来解除偶极封锁铺平了道路，以可控的方式操纵，封锁效果。我们最后报告如何连续监测偶极封锁将是可能的，使用光子-光子相关的散射光的制度，其中自发辐射将占主导地位的耗散在样品中。
We report a model that makes it possible to analyze quantitatively the dipole blockade effect on the dynamical evolution of a two two-level atom system driven by an external laser field. The multiple excitations of the atomic sample are taken into account. We find very large concurrence in the dipole blockade regime. We further find that entanglement can be tuned by changing the intensity of the exciting laser. We also report a way to lift the dipole blockade paving the way to manipulate, in a controllable way, the blockade effects. We finally report how a continuous monitoring of the dipole blockade will be possible using photon-photon correlations of the scattered light in a regime where the spontaneous emission will dominate dissipation in the sample.