Acoustic black holes from supercurrent tunneling

Details Acoustic black holes from supercurrent tunneling Acoustic black holes from supercurrent tunneling

2010-10-24

arxiv.org/abs/1010.4961v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15pages,1 figure, to appear in IJMPD

Scientific paper

10.1142/S0218271812500381

We present a version of acoustic black holes by using the principle of the Josephson effect. We find that in the case two superconductors $A$ and $B$ are separated by an insulating barrier, an acoustic black hole may be created in the middle region between the two superconductors. We discuss in detail how to describe an acoustic black hole in the Josephson junction and write the metric in the langauge of the superconducting electronics. Our final results infer that for big enough tunneling current and thickness of the junction, experimental verification of the Hawking temperature could be possible.

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