RT Journal Article T1 Sonic analog of gravitational black holes in Bose-Einstein condensates A1 Garay Elizondo, Luis Javier A1 Anglin, J. R. A1 Cirac, J. I. A1 Zoller, P. AB 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. PB American Physical Society SN 0031-9007 YR 2000 FD 2000-11-27 LK https://hdl.handle.net/20.500.14352/59523 UL https://hdl.handle.net/20.500.14352/59523 LA eng NO © 2000 The American Physical Society.We thank the Austrian Science Foundation and the European Union TMR networks ERBFMRX-CT96-0002 and ERB-FMRX-CT96-0087. NO Austrian Science Foundation NO European Union TMR networks DS Docta Complutense RD 7 jun 2025