Sympathetic cooling of bosonic and fermionic lithium gases towards quantum degeneracy
Sympathetic cooling of two atomic isotopes is experimentally investigated. Using forced evaporation of a bosonic 7Li gas in a magnetic trap, a sample of 3 10^5 6Li fermions has been sympathetically cooled to 9(3)muK, corresponding to 2.2(0.8) times the Fermi temperature. The measured rate constant f...
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| Veröffentlicht in: | Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2001, Vol.64 (1), Article 011402 |
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| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | Sympathetic cooling of two atomic isotopes is experimentally investigated. Using forced evaporation of a bosonic 7Li gas in a magnetic trap, a sample of 3 10^5 6Li fermions has been sympathetically cooled to 9(3)muK, corresponding to 2.2(0.8) times the Fermi temperature. The measured rate constant for 2-body inelastic collisions of 7Li |2,2> state at low magnetic field is 1.0^{+0.8}_{-0.5} 10^-14 cm^3s^-1. |
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| ISSN: | 1050-2947 1094-1622 |
| DOI: | 10.1103/PhysRevA.64.011402 |