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Finite Temperature Collapse of a Bose Gas with Attractive Interactions (extended version) | Erich J. Mueller
; Gordon Baym
; | Date: |
19 May 2000 | Subject: | Statistical Mechanics; Soft Condensed Matter | cond-mat.stat-mech cond-mat.soft | Affiliation: | UIUC | Abstract: | We study the mechanical stability of the weakly interacting Bose gas with attractive interactions, and construct a unified picture of the collapse valid from the low temperature condensed regime to the high temperature classical regime. As we show, the non-condensed particles play a crucial role in determining the region of stability, even providing a mechanism for collapse in the non-condensed cloud. Furthermore, we demonstrate that the mechanical instability prevents BCS-type ``pairing’’ in the attractive Bose gas. We extend our results to describe domain formation in spinor condensates. | Source: | arXiv, cond-mat/0005323 | Services: | Forum | Review | PDF | Favorites |
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