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Black Holes In Bose-Einstein Condensates

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Posted by Brian Kirk Parquette on January 13, 2001 21:10:36 UTC

General Relativity and Quantum Cosmology, abstract
gr-qc/0002015 http://xxx.lanl.gov/abs/gr-qc/0002015
From: Luis J. Garay
Date: Thu, 3 Feb 2000 11:53:37 GMT (205kb)
Black holes in Bose-Einstein condensates
Authors: L. J. Garay, J. R. Anglin, J. I. Cirac, P. Zoller
Comments: LaTex2e, amssymb, 1 figure, 4 pages
The sonic analogue of a gravitational black hole in dilute-gas Bose-Einstein condensates is investigated. It is shown that there
exist both dynamically stable and unstable configurations which, in the hydrodynamic limit, exhibit a behavior completely
analogous to that of gravitational black holes. The dynamical instabilities involve creation of quasiparticle pairs in positive and
negative energy states, just as in the well-known suggested mechanism for black hole evaporation. We have also simulated the
creation of a stable sonic black hole by solving the full Gross-Pitaevskii equation numerically for a condensate in which its
characteristic parameters are changed adiabatically. A sonic black hole could in this way be created experimentally with
state-of-the-art or planned technology.


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