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arXiv quant-ph/9810003quant-phphysics.optics
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超亮偏振纠缠光子源

Ultra-bright source of polarization-entangled photons

Paul G. Kwiat, Edo Waks, Andrew G. White, Ian Appelbaum, Philippe H. Eberhard

摘要:

在一个新的双晶体几何结构中使用自发参量下转换过程,可以产生一个比以前的光源亮几个数量级的偏振纠缠光子对源。我们已经测量了一个相对较大的收集角,并超过10 nm的带宽发射的光子之间的纠缠度高。作为源强度的演示,我们在不到三分钟的时间内获得了242- $σ$对贝尔不等式的违反。

英文摘要:

Using the process of spontaneous parametric down conversion in a novel two-crystal geometry, one can generate a source of polarization-entangled photon pairs which is orders of magnitude brighter than previous sources. We have measured a high level of entanglement between photons emitted over a relatively large collection angle, and over a 10-nm bandwidth. As a demonstration of the source intensity, we obtained a 242-$σ$ violation of Bell's inequalities in less than three minutes.

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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