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arXiv 1906.05151quant-phphysics.atom-ph
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自由空间里德伯介质中大的共振交叉克尔非线性的观测

Observation of a large, resonant, cross-Kerr nonlinearity in a free-space Rydberg medium

Josiah Sinclair, Daniela Angulo, Noah Lupu-Gladstein, Kent Bonsma-Fisher, Aephraim M. Steinberg

摘要:

本文报道了基于共振激发、相互作用的里德伯原子和电磁感应透明的自由空间介质中的交叉克尔非线性效应的实验观察。利用非线性效应实现了两个光脉冲之间的交叉相位调制。写入探测脉冲的非线性相位被测量为与每nW信号功率的$8$ mrad一样大,对应于$10^{-8}\textrm{m}^2/\textrm{V}^2$的$χ^{(3)}$。潜在的应用范围从光学量子信息处理到光子数的量子非破坏测量。

英文摘要:

We report the experimental observation of a cross-Kerr nonlinearity in a free-space medium based on resonantly-excited, interacting Rydberg atoms and electromagnetically induced transparency. The nonlinearity is used to implement cross-phase modulation between two optical pulses. The nonlinear phase written onto the probe pulse is measured to be as large as $8$ mrad per nW of signal power, corresponding to a $χ^{(3)}$ of $10^{-8}\textrm{m}^2/\textrm{V}^2$. Potential applications range from optical quantum information processing to quantum non-demolition measurement of photon number.

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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