Iacopo Carusotto et al 2008 New J. Phys. 10 103001 doi:10.1088/1367-2630/10/10/103001
Numerical observation of Hawking radiation from acoustic black holes in atomic Bose–Einstein condensates
Iacopo Carusotto1,5, Serena Fagnocchi2,3, Alessio Recati1, Roberto Balbinot3 and Alessandro Fabbri4
Show affiliationsWe report numerical evidence of Hawking emission of Bogoliubov phonons from a sonic horizon in a flowing one-dimensional atomic Bose–Einstein condensate. The presence of Hawking radiation is revealed from peculiar long-range patterns in the density–density correlation function of the gas. Quantitative agreement between our fully microscopic calculations and the prediction of analog models is obtained in the hydrodynamic limit. New features are predicted and the robustness of the Hawking signal against a finite temperature discussed.
- PACS
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04.70.Dy Quantum aspects of black holes, evaporation, thermodynamics
03.75.Kk Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow
- Subjects
- Dates
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Issue 10 (October 2008)
Received 24 June 2008
Published 2 October 2008
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Numerical observation of Hawking radiation from acoustic black holes in atomic Bose–Einstein condensates
Iacopo Carusotto et al 2008 New J. Phys. 10 103001
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