Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms
Experimentally the spin dependence of inelastic collisions between ytterbium (Yb) in the metastable ${}^{3}{{\rm{P}}}_{2}$ state and lithium (Li) in the ${}^{2}{{\rm{S}}}_{1/2}$ ground state manifold is investigated at low magnetic fields. Using selective excitation all magnetic sublevels m _J of ${...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/aa8cec |
| _version_ | 1797750550688694272 |
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| author | Florian Schäfer Hideki Konishi Adrien Bouscal Tomoya Yagami Yoshiro Takahashi |
| author_facet | Florian Schäfer Hideki Konishi Adrien Bouscal Tomoya Yagami Yoshiro Takahashi |
| author_sort | Florian Schäfer |
| collection | DOAJ |
| description | Experimentally the spin dependence of inelastic collisions between ytterbium (Yb) in the metastable ${}^{3}{{\rm{P}}}_{2}$ state and lithium (Li) in the ${}^{2}{{\rm{S}}}_{1/2}$ ground state manifold is investigated at low magnetic fields. Using selective excitation all magnetic sublevels m _J of ${}^{174}$ Yb( ${}^{3}{{\rm{P}}}_{2}$ ) are accessed and four of the six lowest lying magnetic sublevels of ${}^{6}{\rm{L}}{\rm{i}}$ are prepared by optical pumping. On the one hand, m _J -independence of collisions involving Li( $F=1/2$ ) atoms is found. A systematic m _J -dependence in collisions with Li( $F=3/2$ ) atoms, in particular suppressed losses for stretched collisional states, is observed on the other hand. Further, m _J -changing processes are found to be of minor relevance. The span of observed inelastic collision rates is between $1\times {10}^{-11}$ and $40\times {10}^{-11}\,{\mathrm{cm}}^{3}\,{{\rm{s}}}^{-1}$ , and a possible origin of the observed behavior is discussed. |
| first_indexed | 2024-03-12T16:34:20Z |
| format | Article |
| id | doaj.art-4df7907b1e3649c2a721ea289005c6a0 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:34:20Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-4df7907b1e3649c2a721ea289005c6a02023-08-08T14:57:00ZengIOP PublishingNew Journal of Physics1367-26302017-01-01191010303910.1088/1367-2630/aa8cecSpin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atomsFlorian Schäfer0https://orcid.org/0000-0003-2198-0709Hideki Konishi1Adrien Bouscal2Tomoya Yagami3Yoshiro Takahashi4Department of Physics, Graduate School of Science, Kyoto University , Kyoto 606-8502, JapanDepartment of Physics, Graduate School of Science, Kyoto University , Kyoto 606-8502, JapanDepartment of Physics, Graduate School of Science, Kyoto University , Kyoto 606-8502, Japan; Department of Physics, École Normale Supérieure , 24 rue Lhomond, F-75231 Paris Cedex 05, FranceDepartment of Physics, Graduate School of Science, Kyoto University , Kyoto 606-8502, JapanDepartment of Physics, Graduate School of Science, Kyoto University , Kyoto 606-8502, JapanExperimentally the spin dependence of inelastic collisions between ytterbium (Yb) in the metastable ${}^{3}{{\rm{P}}}_{2}$ state and lithium (Li) in the ${}^{2}{{\rm{S}}}_{1/2}$ ground state manifold is investigated at low magnetic fields. Using selective excitation all magnetic sublevels m _J of ${}^{174}$ Yb( ${}^{3}{{\rm{P}}}_{2}$ ) are accessed and four of the six lowest lying magnetic sublevels of ${}^{6}{\rm{L}}{\rm{i}}$ are prepared by optical pumping. On the one hand, m _J -independence of collisions involving Li( $F=1/2$ ) atoms is found. A systematic m _J -dependence in collisions with Li( $F=3/2$ ) atoms, in particular suppressed losses for stretched collisional states, is observed on the other hand. Further, m _J -changing processes are found to be of minor relevance. The span of observed inelastic collision rates is between $1\times {10}^{-11}$ and $40\times {10}^{-11}\,{\mathrm{cm}}^{3}\,{{\rm{s}}}^{-1}$ , and a possible origin of the observed behavior is discussed.https://doi.org/10.1088/1367-2630/aa8cecquantum degenerate atomic mixturesmetastable stateinelastic collisionsnon-S-state collisionsanisotropy |
| spellingShingle | Florian Schäfer Hideki Konishi Adrien Bouscal Tomoya Yagami Yoshiro Takahashi Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms New Journal of Physics quantum degenerate atomic mixtures metastable state inelastic collisions non-S-state collisions anisotropy |
| title | Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms |
| title_full | Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms |
| title_fullStr | Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms |
| title_full_unstemmed | Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms |
| title_short | Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms |
| title_sort | spin dependent inelastic collisions between metastable state two electron atoms and ground state alkali atoms |
| topic | quantum degenerate atomic mixtures metastable state inelastic collisions non-S-state collisions anisotropy |
| url | https://doi.org/10.1088/1367-2630/aa8cec |
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