Coherent generation of EPR-entangled light pulses mediated by a single trapped atom
Coherent generation of EPR-entangled light pulses mediated by a single trapped atom
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DOI：
10.1103/physreva.73.033822
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发表时间：
2005-12
影响因子：
2.9
通讯作者：
G. Morigi;J. Eschner;S. Mancini;D. Vitali
中科院分区：
文献类型：
--
作者：
G. Morigi;J. Eschner;S. Mancini;D. Vitali
我们证明，高精度光学腔中的单个捕获的激光驱动原子可以根据需要量子相干地生成纠缠光脉冲。我们报告了生成同时和时间上分离的脉冲对的方案的详细描述，在[G.莫里吉等人，物理学。 Rev. Lett., 96, 023601 (2006)]。激光激发对冷捕获原子量子运动的机械效应分别介导两个腔模式之间以及两个后续脉冲之间的纠缠相互作用。纠缠是EPR型的，其程度可以通过外部参数来控制。在生成过程结束时，原子与光场解相关。讨论了建议的可能的实验实施。
We show that a single, trapped, laser-driven atom in a high-finesse optical cavity allows for the quantum-coherent generation of entangled light pulses on demand. We report the detailed description of schemes for generating simultaneous and temporally separated pulse pairs, presented in [G. Morigi et al., Phys. Rev. Lett., 96, 023601 (2006)]. The mechanical effect of the laser excitation on the quantum motion of the cold trapped atom mediates the entangling interaction between two cavity modes and between the two subsequent pulses, respectively. The entanglement is of EPR-type, and its degree can be controlled through external parameters. At the end of the generation process the atom is decorrelated from the light field. Possible experimental implementations of the proposals are discussed.