Ultracold atoms in radio-frequency dressed potentials beyond the rotating-wave approximation Export

@article{HofFisLes07, abstract = {We study dressed Bose-Einstein condensates in an atom chip radio-frequency trap. We show that in this system sufficiently strong dressing can be achieved to cause the widely used rotating-wave approximation (RWA) to break down. We present a full calculation of the atom-field coupling which shows that the non-RWA contributions quantitatively alter the shape of the emerging dressed adiabatic potentials. The non-RWA contributions furthermore lead to additional allowed transitions between dressed levels. We use rf spectroscopy of Bose-Einstein condensates trapped in the dressed state potentials to directly observe the transition from the RWA to the beyond-RWA regime.}, author = {Hofferberth, S. and Fischer, B. and Schumm, T. and Schmiedmayer, J. and Lesanovsky, I.}, citeulike-article-id = {1730387}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLRAAN000076000001013401000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRA/v76/e013401}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevA.76.013401}, doi = {10.1103/PhysRevA.76.013401}, journal = {Physical Review A (Atomic, Molecular, and Optical Physics)}, keywords = {atom-chips, double-well, microtraps, rf-dressed-potentials, rf-spectroscopy}, number = {1}, pages = {013401+}, posted-at = {2007-11-19 12:15:32}, priority = {2}, publisher = {APS}, title = {Ultracold atoms in radio-frequency dressed potentials beyond the rotating-wave approximation}, url = {http://dx.doi.org/10.1103/PhysRevA.76.013401}, volume = {76}, year = {2007} }

TY - JOUR ID - HofFisLes07 L3 - citeulike-article-id:1730387 N2 - We study dressed Bose-Einstein condensates in an atom chip radio-frequency trap. We show that in this system sufficiently strong dressing can be achieved to cause the widely used rotating-wave approximation (RWA) to break down. We present a full calculation of the atom-field coupling which shows that the non-RWA contributions quantitatively alter the shape of the emerging dressed adiabatic potentials. The non-RWA contributions furthermore lead to additional allowed transitions between dressed levels. We use rf spectroscopy of Bose-Einstein condensates trapped in the dressed state potentials to directly observe the transition from the RWA to the beyond-RWA regime. IS - 1 JF - Physical Review A (Atomic, Molecular, and Optical Physics) TI - Ultracold atoms in radio-frequency dressed potentials beyond the rotating-wave approximation PB - APS VL - 76 SP - 013401 KW - atom-chips KW - double-well KW - microtraps KW - rf-dressed-potentials KW - rf-spectroscopy AU - Hofferberth, S AU - Fischer, B AU - Schumm, T AU - Schmiedmayer, J AU - Lesanovsky, I PY - 2007/// UR - http://dx.doi.org/10.1103/PhysRevA.76.013401 ER -