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APS » Journals » Phys. Rev. Lett. » Volume 85 » Issue 22
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Phys. Rev. Lett. 85, 4643–4647 (2000)

Sonic Analog of Gravitational Black Holes in Bose-Einstein Condensates

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L. J. Garay1,2, J. R. Anglin1,3, J. I. Cirac1, and P. Zoller1
1Institut für Theoretische Physik, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria
2Instituto de Matemáticas y Física Fundamental, CSIC, C/Serrano 121, E-28006 Madrid, Spain
3Institute for Theoretical Atomic and Molecular Physics, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02135

Received 3 February 2000; published in the issue dated 27 November 2000

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.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.4643
DOI:
10.1103/PhysRevLett.85.4643
PACS:
03.75.Fi, 04.70.Dy, 04.80.-y
 
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