Numerical observation of Hawking radiation from acoustic black holes in atomic Bose-Einstein condensates
Year: 2008
Authors: Carusotto I., Fagnocchi S., Recati A., Balbinot R., Fabbri A.
Autors Affiliation: CNR-INFM BEC Center and Dipartimento di Fisica, Università di Trento, via Sommarive 14, I-38050 Povo, Trento, Italy;
Centro Studi e Ricerche ‘Enrico Fermi’, Compendio Viminale, 00184 Roma, Italy
Dipartimento di Fisica dell’Università di Bologna and INFN sezione di Bologna, Via Irnerio 46, 40126 Bologna, Italy;
Departamento de Fisica Teorica and IFIC, Universidad de Valencia-CSIC, C. Dr Moliner 50, 46100 Burjassot, Spain
Abstract: We 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.
Journal/Review: NEW JOURNAL OF PHYSICS
Volume: 10 Pages from: 103001 to: 103001
More Information: We are indebted to Y Castin, C Ciuti, R Floreanini, C Lobo, Z Gaburro, N Pavloff, R Parentani, M Rinaldi and W Unruh for stimulating discussions. IC and AR acknowledge support from the Italian MIUR and the EuroQUAM-FerMix program. IC acknowledges support from the French CNRS. SF acknowledges support from E Fermi center. AF acknowledges the Spanish MEC.DOI: 10.1088/1367-2630/10/10/103001ImpactFactor: 3.440Citations: 217data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-09-29References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here