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arXiv:cond-mat/0006108 · Physica A Statistical Mechanics and its Applications

Bose–Einstein condensation thermodynamics of a trapped gas with attractive interaction

Sadhan K. Adhikari

Published Sep 1, 2000• 7 citations
arXivHTMLPDF
DOI
10.1016/s0378-4371(00)00240-5

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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.