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Intrinsic instability of sonic white holes

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arxiv gr-qc/0211069 v1 pith:JZMTRV53 submitted 2002-11-21 gr-qc

classification gr-qc
keywords holessonicbose-einsteincondensatesgivephysicswhiteanalogue
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Artificial black holes, such as sonic holes in Bose-Einstein condensates, may give insights into the role of the physics at the event horizon beyond the Planck scale. We show that sonic white holes give rise to a discrete spectrum of instabilities that is insensitive to the analogue of trans-Planckian physics for Bose-Einstein condensates.

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