%0 Journal Article %1 Lahav2009 %A Lahav, O. %A Itah, A. %A Blumkin, A. %A Gordon, C. %A Steinhauer, J. %D 2009 %K BEC black hole phonon %T A sonic black hole in a density-inverted Bose-Einstein condensate %U http://arxiv.org/abs/0906.1337 %X We have created the analogue of a black hole in a Bose-Einstein condensate. In this sonic black hole, sound waves, rather than light waves, cannot escape the event horizon. The black hole is realized via a counterintuitive density inversion, in which an attractive potential repels the atoms. This allows for measured flow speeds which cross and exceed the speed of sound by an order of magnitude. The Landau critical velocity is therefore surpassed. The point where the flow speed equals the speed of sound is the event horizon. The effective gravity is determined from the profiles of the velocity and speed of sound.

@article{Lahav2009, abstract = { We have created the analogue of a black hole in a Bose-Einstein condensate. In this sonic black hole, sound waves, rather than light waves, cannot escape the event horizon. The black hole is realized via a counterintuitive density inversion, in which an attractive potential repels the atoms. This allows for measured flow speeds which cross and exceed the speed of sound by an order of magnitude. The Landau critical velocity is therefore surpassed. The point where the flow speed equals the speed of sound is the event horizon. The effective gravity is determined from the profiles of the velocity and speed of sound. }, added-at = {2009-06-10T18:40:17.000+0200}, author = {Lahav, O. and Itah, A. and Blumkin, A. and Gordon, C. and Steinhauer, J.}, biburl = {https://www.bibsonomy.org/bibtex/245c97e298362bd45ce7074d7c5b6fe2d/astravinsky}, description = {A sonic black hole in a density-inverted Bose-Einstein condensate}, interhash = {04e817a16dea0471011e306dd8b93ced}, intrahash = {45c97e298362bd45ce7074d7c5b6fe2d}, keywords = {BEC black hole phonon}, note = {cite arxiv:0906.1337 }, timestamp = {2009-06-10T18:40:17.000+0200}, title = {A sonic black hole in a density-inverted Bose-Einstein condensate}, url = {http://arxiv.org/abs/0906.1337}, year = 2009 }