Quantum degenerate two-species fermi-fermi mixture coexisting with a bose-einstein condensate
We report on the generation of a quantum degenerate Fermi-Fermi mixture of two different atomic species. The quantum degenerate mixture is realized employing sympathetic cooling of fermionic 6Li and 40K gases by an evaporatively cooled bosonic 87Rb gas. We describe the combination of trapping and co...
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| Published in | Physical review letters Vol. 100; no. 1; p. 010401 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
11.01.2008
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| Online Access | Get more information |
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| Abstract | We report on the generation of a quantum degenerate Fermi-Fermi mixture of two different atomic species. The quantum degenerate mixture is realized employing sympathetic cooling of fermionic 6Li and 40K gases by an evaporatively cooled bosonic 87Rb gas. We describe the combination of trapping and cooling methods that proved crucial to successfully cool the mixture. In particular, we study the last part of the cooling process and show that the efficiency of sympathetic cooling of the 6Li gas by 87Rb is increased by the presence of 40K through catalytic cooling. Because of the differing physical properties of the two components, the quantum degenerate 6Li-40K Fermi-Fermi mixture is an excellent candidate for a stable, heteronuclear system allowing the study of several so far unexplored types of quantum matter. |
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| AbstractList | We report on the generation of a quantum degenerate Fermi-Fermi mixture of two different atomic species. The quantum degenerate mixture is realized employing sympathetic cooling of fermionic 6Li and 40K gases by an evaporatively cooled bosonic 87Rb gas. We describe the combination of trapping and cooling methods that proved crucial to successfully cool the mixture. In particular, we study the last part of the cooling process and show that the efficiency of sympathetic cooling of the 6Li gas by 87Rb is increased by the presence of 40K through catalytic cooling. Because of the differing physical properties of the two components, the quantum degenerate 6Li-40K Fermi-Fermi mixture is an excellent candidate for a stable, heteronuclear system allowing the study of several so far unexplored types of quantum matter. |
| Author | Dieckmann, K Taglieber, M Voigt, A-C Aoki, T Hänsch, T W |
| Author_xml | – sequence: 1 givenname: M surname: Taglieber fullname: Taglieber, M organization: Department für Physik der Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 Munich, Germany – sequence: 2 givenname: A-C surname: Voigt fullname: Voigt, A-C – sequence: 3 givenname: T surname: Aoki fullname: Aoki, T – sequence: 4 givenname: T W surname: Hänsch fullname: Hänsch, T W – sequence: 5 givenname: K surname: Dieckmann fullname: Dieckmann, K |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/18232744$$D View this record in MEDLINE/PubMed |
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