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arXiv 1107.3202quant-phphysics.atom-ph
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多粒子里德伯激发的退相与快速纠缠的产生

Dephasing of multiparticle Rydberg excitations for fast entanglement generation

F. Bariani, Y. O. Dudin, T. A. B. Kennedy, A. Kuzmich

摘要:

提出了一种基于大光学厚度原子系综中集体激发(自旋波)里德堡退相的快速纠缠产生方法。长程$1/r^3$原子相互作用是由反宇称里德堡态的微波混频引起的。所需的长相干时间是通过四光子激发和读出长波长自旋波来实现的。退相机制示出具有有利的,近似指数,缩放纠缠产生。

英文摘要:

An approach to fast entanglement generation based on Rydberg dephasing of collective excitations (spin-waves) in large, optically thick atomic ensembles is proposed. Long-range $1/r^3$ atomic interactions are induced by microwave mixing of opposite-parity Rydberg states. Required long coherence times are achieved via four-photon excitation and read-out of long wavelength spin-waves. The dephasing mechanism is shown to have favorable, approximately exponential, scaling for entanglement generation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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