Finite Temperature Collapse of a Bose Gas with Attractive Interactions
نویسندگان
چکیده
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. PACS numbers: 03.75.Fi, 05.30.Jp, 64.70.Fx, 64.60.My Typeset using REVTEX 1
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