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arXiv · 1809.00479

Fermionic analogue of black hole radiation with a super high Hawking temperature

Hang Liu·Jia-Tao Sun·Huaqing Huang·Feng Liu·Sheng Meng
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Abstract

Measurement of gravitational Hawking radiation of black hole (BH) is prohibitive because of an extremely low Hawking temperature (TH). Here we demonstrate a fermionic analog of BH with a super high TH ~ 3 K, which is several orders of magnitude higher than previous works. We propose that Floquet-Dirac states, formed in a periodically laser driven two-dimensional black phosphorous thin film, can be designed with a spatial gradient to mimic the "gravity" felt by fermionic quasiparticles as that for a Schwarzschild BH (SBH). Quantum tunneling of electrons from a type-II Dirac cone (inside BH) to a type-I Dirac cone (outside) emits a SBH-like Hawking radiation spectrum.

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Hang Liu, Jia-Tao Sun, Huaqing Huang, Feng Liu, Sheng Meng. 2018-09-03. Fermionic analogue of black hole radiation with a super high Hawking temperature. https://arxiv.org/abs/1809.00479

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