Quantum simulation of particle pair creation near the event horizon

• 作者: Chong Sheng Hui Liu Jun Gao Shi-Ning Zhu Tian-Huai Yang Xian-Min Jin Xiao-Ling Pang Yao Wang Yi-Jun Chang Yong-Heng Lu
• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2020,（9）
• 所属期刊栏目: RESEARCH ARTICLES
• 页码范围: 1476-1484
• 页数: 9页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa111

摘要

Though it is still a big challenge to unify general relativity and quantum mechanics in modem physics,the theory of quantum field related with the gravitational effect has been well developed and some striking phenomena are predicted,such as Hawking radiation.However,the direct measurement of these quantum effects under general relativity is far beyond present experiment techniques.Fortunately,the emulation of general relativity phenomena in the laboratory has become accessible in recent years.However,up to now,these simulations are limited either in classical regime or in fiat space whereas quantum simulation related with general relativity is rarely involved.Here we propose and experimentally demonstrate a quantum evolution of fermions in close proximity to an artificial black hole on a photonic chip.We successfully observe the acceleration behavior,quantum creation,and evolution ora fermion pair near the event horizon: a single-photon wave packet with positive energy escapes from the black hole while negative energy is captured.Our extensible platform not only provides a route to access quantum effects related with general relativity,but also has the potentiality to investigate quantum gravity in future.