Back to Home

Blackholes Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Blackholes I | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Black Holes In Bose-Einstein Condensates

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Brian Kirk Parquette on January 13, 2001 21:10:36 UTC

General Relativity and Quantum Cosmology, abstract
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.

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2023 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins