%0 Journal Article %1 Papp2008Bragg %A Papp, S. B. %A Pino, J. M. %A Wild, R. J. %A Ronen, S. %A Wieman, C. E. %A Jin, D. S. %A Cornell, E. A. %D 2008 %I American Physical Society %J Physical Review Letters %K atomic\_gases, bec, cold\_atoms, strongly\_interacting %N 13 %P 135301+ %R 10.1103/physrevlett.101.135301 %T Bragg Spectroscopy of a Strongly Interacting 85Rb Bose-Einstein Condensate %U http://dx.doi.org/10.1103/physrevlett.101.135301 %V 101 %X We report on measurements of the excitation spectrum of a strongly interacting Bose-Einstein condensate. A magnetic-field Feshbach resonance is used to tune atom-atom interactions in the condensate and to reach a regime where quantum depletion and beyond mean-field corrections to the condensate chemical potential are significant. We use two-photon Bragg spectroscopy to probe the condensate excitation spectrum; our results demonstrate the onset of beyond mean-field effects in a gaseous Bose-Einstein condensate.

@article{Papp2008Bragg, abstract = {We report on measurements of the excitation spectrum of a strongly interacting Bose-Einstein condensate. A magnetic-field Feshbach resonance is used to tune atom-atom interactions in the condensate and to reach a regime where quantum depletion and beyond mean-field corrections to the condensate chemical potential are significant. We use two-photon Bragg spectroscopy to probe the condensate excitation spectrum; our results demonstrate the onset of beyond mean-field effects in a gaseous Bose-Einstein condensate.}, added-at = {2014-01-09T15:14:33.000+0100}, author = {Papp, S. B. and Pino, J. M. and Wild, R. J. and Ronen, S. and Wieman, C. E. and Jin, D. S. and Cornell, E. A.}, biburl = {https://www.bibsonomy.org/bibtex/234c1137941e2fa3b2c277c6e3cdce9ca/jaspervh}, citeulike-article-id = {3317851}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000101000013135301000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v101/e135301}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/physrevlett.101.135301}, doi = {10.1103/physrevlett.101.135301}, interhash = {36d5f390d2bb5e2a777dee52510356c6}, intrahash = {34c1137941e2fa3b2c277c6e3cdce9ca}, journal = {Physical Review Letters}, keywords = {atomic\_gases, bec, cold\_atoms, strongly\_interacting}, month = sep, number = 13, pages = {135301+}, posted-at = {2011-11-07 14:17:24}, priority = {2}, publisher = {American Physical Society}, timestamp = {2014-01-09T15:14:33.000+0100}, title = {Bragg Spectroscopy of a Strongly Interacting 85Rb Bose-Einstein Condensate}, url = {http://dx.doi.org/10.1103/physrevlett.101.135301}, volume = 101, year = 2008 }