RT Journal Article
T1 Sonic black holes in dilute Bose-Einstein condensates
A1 Garay Elizondo, Luis Javier
A1 Cirac, J. I.
A1 Anglin, J. R.
A1 Zoller, P.
AB The sonic analog 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 behaviors completely analogous to that of gravitational black holes. The dynamical instabilities involve the creation of quasiparticle pairs in positive and negative energy states. We illustrate these features in two qualitatively different one-dimensional models, namely, a long, thin condensate with an outcoupler laser beam providing an "atom sink" and a tight ring-shaped condensate. We also simulate the creation of a stable sonic black hole by solving the Gross-Pitaevskii equation numerically for a condensate subject to a trapping potential which is adiabatically deformed. A sonic black hole could, in this way, be created experimentally with state-of-the-art or planned technology.
PB American Physical Society
SN 1050-2947
YR 2001
FD 2001-02
LK https://hdl.handle.net/20.500.14352/59514
UL https://hdl.handle.net/20.500.14352/59514
LA eng
NO © 2001 The American Physical Society.We thank the Austrian Science Foundation and the European Union TMR networks ERBFMRX–CT96–0002 and ERB–FMRX–CT96–0087. J.R.A. is grateful to Ted Jabobson for useful discussions.
NO Austrian Science Foundation and the European Union
DS Docta Complutense
RD 6 abr 2025