Bose-Einstein condensation of lithium

Randy G. Hulet, Curtis C. Bradley, C. A. Sackett

Research output: Contribution to journalConference articlepeer-review


Bose-Einstein condensation of 7Li has been studied in a magnetically trapped gas. Because of the effectively attractive interactions between 7Li atoms, many-body quantum theory predicts that the occupation number of the condensate is limited to about 1400 atoms. We observe the condensate number to be limited to a maximum value between 650 and 1300 atoms. The measurements were made using a versatile phase-contrast imaging technique. We discuss our measurements, the current theoretical understanding of BEC in a gas with attractive interactions, and future experiments we hope to perform.

Original languageBritish English
Pages (from-to)223-231
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1997
EventAtom Optics - San Jose, CA, United States
Duration: 10 Feb 199710 Feb 1997


  • Bose-Einstein condensation
  • Lithium
  • Negative scattering length
  • Phase contrast imaging


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