arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1005.0802quant-ph
收藏

类Mach-Zehnder干涉仪对无纠缠纠缠光子的干涉

Interference of overlap-free entangled photons with a Mach-Zehnder-like interferometer

Xian-Min Jin, Cheng-Zhi Peng, Tao Yang, Youjin Deng

摘要:

利用自发参量下转换和50:50分束器,我们产生了同轴偏振纠缠光子对,其中两个光子彼此相距很远。然后,光子通过修改后的马赫-曾德尔干涉仪的一个端口一个接一个地发送。我们观察到干涉条纹的周期性的一半的单光子波长,独立的光子之间的距离。这一特性可以在量子增强测量中得到应用。

英文摘要:

Using spontaneous parametric down conversion and a 50:50 beam splitter, we generate coaxial polarization-entangled photon pairs, of which the two photons are far separated from each other. The photons are then sent one by one through one port of a modified Mach-Zehnder interferometer. We observe interference fringes with a periodicity half of the single-photon wavelength, independent of the distance between the photons. This feature can find applications in quantum-enhanced measurement.

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。

↑