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Simulating the escape of entangled photons from the event horizon of black holes in nonuniform optical lattices
Physical Review A ( IF 2.6 ) Pub Date : 2021-03-05 , DOI: 10.1103/physreva.103.033703
Chong Sheng , Chunyu Huang , Runqiu Yang , Yanxiao Gong , Shining Zhu , Hui Liu

We investigate quantum walks in a noninertial frame with a Rindler metric, emulated by a nonuniform optical lattice with varying site couplings whose metric is mathematically equivalent to that of a Schwarzschild black hole near the event horizon. The optical trapping of single photons and two indistinguishable photons in such nonuniform lattices conforms to a well-known classical physical recognition due to the strong gravitational force of black holes. Counterintuitively, there is an optical escape for path-entangled photons for which one photon is captured, while the other photon escapes. Intriguingly, we find that the counterintuitive phenomenon has a distinct escape mechanism compared to Hawking radiation, which is wholly due to quantum interference. Additionally, we investigate the entanglement decay for this maximally entangled state in the emulated noninertial frame. Our study paves the way for a tabletop platform for understanding quantum effects under general relativity.

中文翻译:

从非均匀光学晶格中的黑洞事件视界模拟纠缠光子的逸出

我们研究了具有Rindler度量的非惯性框架中的量子游走,该量子行走由具有不同位置耦合的非均匀光学晶格模拟,该度量在数学上等效于事件视界附近的Schwarzschild黑洞。由于黑洞的强大引力,这种非均匀晶格中的单个光子和两个不可区分的光子的光阱符合众所周知的经典物理识别。与直觉相反,路径缠结的光子有一个光逸出,一个光子被捕获,而另一个光子则逸出。有趣的是,我们发现与直觉辐射相比,违反直觉的现象具有独特的逃逸机制,这完全归因于量子干扰。此外,我们研究了在非惯性框架中此最大纠缠状态的纠缠衰减。我们的研究为了解广义相对论下的量子效应的桌面平台铺平了道路。
更新日期:2021-03-05
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