6533b839fe1ef96bd12a6772

RESEARCH PRODUCT

Numerical observation of Hawking radiation from acoustic black holes in atomic Bose–Einstein condensates

Alessio RecatiRoberto BalbinotSerena FagnocchiIacopo CarusottoAlessandro Fabbri

subject

High Energy Physics - TheoryCondensed Matter::Quantum GasesPhysicsPhononHorizonFOS: Physical sciencesGeneral Physics and AstronomyGeneral Relativity and Quantum Cosmology (gr-qc)General Relativity and Quantum Cosmologylaw.inventionCondensed Matter - Other Condensed MatterGeneral Relativity and Quantum CosmologyCorrelation function (statistical mechanics)HawkingHigh Energy Physics - Theory (hep-th)lawQuantum electrodynamicsBose–Einstein condensateOther Condensed Matter (cond-mat.other)Hawking radiation

description

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.

https://doi.org/10.1088/1367-2630/10/10/103001