Simulating the escape of entangled photons from the event horizon of black holes in nonuniform optical lattices

Chong Sheng, Chunyu Huang, Runqiu Yang, Yanxiao Gong, Shining Zhu, and Hui Liu
Phys. Rev. A 103, 033703 – Published 5 March 2021

Abstract

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.

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  • Received 12 November 2020
  • Accepted 16 February 2021

DOI:https://doi.org/10.1103/PhysRevA.103.033703

©2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Chong Sheng1,*, Chunyu Huang1, Runqiu Yang2, Yanxiao Gong1, Shining Zhu1, and Hui Liu1,†

  • 1National Laboratory of Solid State Microstructures and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu 210093, China
  • 2Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Yaguan Road 135, Jinnan District, 300350 Tianjin, China

  • *csheng@nju.edu.cn
  • liuhui@nju.edu.cn

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Issue

Vol. 103, Iss. 3 — March 2021

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