%0 Journal Article %1 Tong2008Observation %A Tong, D. %A Farooqi, S. M. %A van Kempen, E. G. M. %A Pavlovic, Z. %A Stanojevic, J. %A C&\#xf4;t&\#xe9;, R. %A Eyler, E. E. %A Gould, P. L. %D 2008 %K rydberg %T Observation of Electric Quadrupole Transitions to Rydberg nd States of Ultracold Rubidium Atoms %U http://arxiv.org/abs/0809.2341 %X We report the observation of dipole-forbidden, but quadrupole-allowed, one-photon transitions to high Rydberg states in Rb. Using pulsed UV excitation of ultracold atoms in a magneto-optical trap, we excite \$5s nd\$ transitions over a range of principal quantum numbers \$n=27-59\$. Compared to dipole-allowed (E1) transitions from \$5s np\$, these E2 transitions are weaker by a factor of approximately 2000. We also report measurements of the anomalous \$np\_3/2 : np\_1/2\$ fine-structure transition strength ratio for \$n=28-75\$. Both results are in agreement with theoretical predictions.

@article{Tong2008Observation, abstract = {We report the observation of dipole-forbidden, but quadrupole-allowed, one-photon transitions to high Rydberg states in Rb. Using pulsed UV excitation of ultracold atoms in a magneto-optical trap, we excite \$5s \to nd\$ transitions over a range of principal quantum numbers \$n=27-59\$. Compared to dipole-allowed (E1) transitions from \$5s \to np\$, these E2 transitions are weaker by a factor of approximately 2000. We also report measurements of the anomalous \$np\_{3/2} : np\_{1/2}\$ fine-structure transition strength ratio for \$n=28-75\$. Both results are in agreement with theoretical predictions.}, added-at = {2019-02-26T15:22:34.000+0100}, archiveprefix = {arXiv}, author = {Tong, D. and Farooqi, S. M. and van Kempen, E. G. M. and Pavlovic, Z. and Stanojevic, J. and C\&\#xf4;t\&\#xe9;, R. and Eyler, E. E. and Gould, P. L.}, biburl = {https://www.bibsonomy.org/bibtex/2bdc459d15528f84c080f5de17518c60a/rspreeuw}, citeulike-article-id = {3279227}, citeulike-linkout-0 = {http://arxiv.org/abs/0809.2341}, citeulike-linkout-1 = {http://arxiv.org/pdf/0809.2341}, day = 13, eprint = {0809.2341}, interhash = {ea8f9cefda951086477b809c5ddc160a}, intrahash = {bdc459d15528f84c080f5de17518c60a}, keywords = {rydberg}, month = sep, posted-at = {2008-09-17 08:22:24}, priority = {2}, timestamp = {2019-02-26T15:22:34.000+0100}, title = {{Observation of Electric Quadrupole Transitions to Rydberg nd States of Ultracold Rubidium Atoms}}, url = {http://arxiv.org/abs/0809.2341}, year = 2008 }