Nonlocal density correlations as a signature of Hawking radiation from acoustic black holes
- 19 August 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 78 (2) , 021603
Abstract
We have used the analogy between gravitational systems and nonhomogeneous fluid flows to calculate the density-density correlation function of an atomic Bose-Einstein condensate in the presence of an acoustic black hole. The emission of correlated pairs of phonons by Hawking-like process results into a peculiar long-range density correlation. Quantitative estimations of the effect are provided for realistic experimental configurations.Keywords
All Related Versions
This publication has 37 references indexed in Scilit:
- Correlations and Counting Statistics of an Atom LaserPhysical Review Letters, 2005
- Hawking Radiation in an Electromagnetic Waveguide?Physical Review Letters, 2005
- Hawking Radiation in Sonic Black HolesPhysical Review Letters, 2005
- Gibbons-Hawking Effect in the Sonic de Sitter Space-Time of an Expanding Bose-Einstein-Condensed GasPhysical Review Letters, 2003
- On slow light as a black hole analoguePhysical Review D, 2003
- Breakdown of superfluidity of an atom laser past an obstaclePhysical Review A, 2002
- Relativistic Effects of Light in Moving Media with Extremely Low Group VelocityPhysical Review Letters, 2000
- Event horizons and ergoregions inPhysical Review D, 1998
- Effective Harmonic-Fluid Approach to Low-Energy Properties of One-Dimensional Quantum FluidsPhysical Review Letters, 1981
- Black hole explosions?Nature, 1974