期刊
NATIONAL SCIENCE REVIEW
卷 7, 期 9, 页码 1476-1484出版社
OXFORD UNIV PRESS
DOI: 10.1093/nsr/nwaa111
关键词
quantum simulation; general relativity; transform optics; particle pair creation; black hole
资金
- National Key Research and Development Program of China [2017YFA0303700, 2017YFA0303702, 2017YFA0205700, 2019YFA0308700]
- National Natural Science Foundation of China [11690033, 61734005, 11761141014, 61425018, 11621091, 11704181]
- Science and Technology Commission of Shanghai Municipality [17JC1400403]
- Shanghai Municipal Education Commission [2017-01-0700-02-E00049]
- Shanghai talent program
- National Postdoctoral Program for Innovative Talents [BX201600070]
Though it is still a big challenge to unify general relativity and quantum mechanics in modern 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 flat 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 of a 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.
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