Expansion of a lithium gas in the BEC-BCS crossover

J. Zhang, E. G.M. Van Kempen, T. Bourdel, L. Khaykovich, J. Cubizolles, F. Chevy, M. Teichmann, L. Tarruell, S. J.J.M.F. Kokkelman, C. Salomon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

We report on experiments in 6Li Fermi gases near Feshbach resonances. A broad s-wave resonance is used to form a Bose-Einstein condensate of weakly bound 6Li 2 molecules in a crossed optical trap. The measured molecule-molecule scattering length of 170 -60 +100nm at 770 G is found in good agreement with theory. The expansion energy of the cloud in the BEC-BCS crossover region is measured. Finally we discuss the properties of p-wave Feshbach resonances observed near 200 Gauss and new s-wave resonances in the heteronuclear 6Li- 7Li mixture.

Original languageEnglish
Title of host publicationATOMIC PHYSICS 19
Subtitle of host publicationXIX International Conference on Atomic Physics, ICAP 2004
Pages228-237
Number of pages10
DOIs
StatePublished - 5 May 2005
EventATOMIC PHYSICS 19: XIX International Conference on Atomic Physics, ICAP 2004 - Rio de Janeiro, Brazil
Duration: 25 Jul 200430 Jul 2004

Publication series

NameAIP Conference Proceedings
Volume770
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceATOMIC PHYSICS 19: XIX International Conference on Atomic Physics, ICAP 2004
Country/TerritoryBrazil
CityRio de Janeiro
Period25/07/0430/07/04

Keywords

  • Bose-Einstein condensation
  • Lithium
  • Resonant states

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