Sonic analog of gravitational black holes in Bose-Einstein condensates

Details Sonic analog of gravitational black holes in Bose-Einstein condensates Sonic analog of gravitational black holes in Bose-Einstein condensates

2000-02-03

arxiv.org/abs/gr-qc/0002015v2

Phys.Rev.Lett.85:4643-4647,2000

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

RevTeX 3.1, 1 figure, 4 pages

Scientific paper

10.1103/PhysRevLett.85.4643

It is shown that, in dilute-gas Bose-Einstein condensates, there exist both dynamically stable and unstable configurations which, in the hydrodynamic limit, exhibit a behavior resembling that of gravitational black holes. The dynamical instabilities involve creation of quasiparticle pairs in positive and negative energy states, as in the well-known suggested mechanism for black hole evaporation. We propose a scheme to generate a stable sonic black hole in a ring trap.

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