Non-local density correlations as signal of Hawking radiation in BEC acoustic black holes
arXiv:0711.4520 · doi:10.1103/PhysRevA.78.021603
Abstract
We have used the analogy between gravitational systems and non-homogeneous 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.
Strongly revised version. 5 pages, 3 eps figures
References in corpus (7)
- Fiber-optical analogue of the event horizon
- Spatial quantum noise interferometry in expanding ultracold atom clouds
- Bosonizing one-dimensional cold atomic gases
- Camparison of the Hanbury Brown-Twiss effect for bosons and fermions
- Extension of Bogoliubov theory to quasi-condensates
- A Primer for Black Hole Quantum Physics
- Gibbons-Hawking Effect in the Sonic de Sitter Space-Time of an Expanding Bose-Einstein-Condensed Gas
Cited by in corpus (5)
- Numerical observation of Hawking radiation from acoustic black holes in atomic Bose-Einstein condensates
- Black/White hole radiation from dispersive theories
- Sensitivity of Hawking radiation to superluminal dispersion relations
- Emergent gravity: the BEC paradigm
- Density ripples in expanding low-dimensional gases as a probe of correlations