%0 Journal Article %1 Andrews1997Propagation %A Andrews, M. R. %A Kurn, D. M. %A Miesner, H. J. %A Durfee, D. S. %A Townsend, C. G. %A Inouye, S. %A Ketterle, W. %D 1997 %I American Physical Society %J Physical Review Letters %K bec, workshop-superfluidity %N 4 %P 553--556 %R 10.1103/physrevlett.79.553 %T Propagation of Sound in a Bose-Einstein Condensate %U http://dx.doi.org/10.1103/physrevlett.79.553 %V 79 %X Sound propagation has been studied in a magnetically trapped dilute Bose-Einstein condensate. Localized excitations were induced by suddenly modifying the trapping potential using the optical dipole force of a focused laser beam. The resulting propagation of sound was observed using a novel technique, rapid sequencing of nondestructive phase-contrast images. The speed of sound was determined as a function of density and found to be consistent with Bogoliubov theory. This method may generally be used to observe high-lying modes and perhaps second sound.

@article{Andrews1997Propagation, abstract = {{Sound propagation has been studied in a magnetically trapped dilute Bose-Einstein condensate. Localized excitations were induced by suddenly modifying the trapping potential using the optical dipole force of a focused laser beam. The resulting propagation of sound was observed using a novel technique, rapid sequencing of nondestructive phase-contrast images. The speed of sound was determined as a function of density and found to be consistent with Bogoliubov theory. This method may generally be used to observe high-lying modes and perhaps second sound.}}, added-at = {2019-02-26T15:22:34.000+0100}, author = {Andrews, M. R. and Kurn, D. M. and Miesner, H. J. and Durfee, D. S. and Townsend, C. G. and Inouye, S. and Ketterle, W.}, biburl = {https://www.bibsonomy.org/bibtex/22871782a650a41a830fd52744fd26728/rspreeuw}, citeulike-article-id = {7016101}, citeulike-linkout-0 = {http://dx.doi.org/10.1103/physrevlett.79.553}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v79/i4/p553}, citeulike-linkout-2 = {http://link.aps.org/pdf/PRL/v79/i4/p553}, doi = {10.1103/physrevlett.79.553}, interhash = {7ba63c7b6983d08d5114601360db0430}, intrahash = {2871782a650a41a830fd52744fd26728}, journal = {Physical Review Letters}, keywords = {bec, workshop-superfluidity}, month = jul, number = 4, pages = {553--556}, posted-at = {2011-01-10 20:43:58}, priority = {2}, publisher = {American Physical Society}, timestamp = {2019-02-26T15:22:34.000+0100}, title = {{Propagation of Sound in a Bose-Einstein Condensate}}, url = {http://dx.doi.org/10.1103/physrevlett.79.553}, volume = 79, year = 1997 }