02-237 J. Lauwers, A. Verbeure, V. A. Zagrebnov

Proof of Bose-Einstein Condensation for Interacting Gases (61K, revtex4, 1 MetaPost figure ) May 23, 02

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Abstract. Using a specially tuned mean-field Bose gas as a reference system, we establish a positive lower bound on the condensate density for continuous Bose systems with superstable two-body interactions and a finite gap in the one-particle excitations spectrum, i.e. we prove for the first time standard homogeneous Bose-Einstein condensation for such interacting systems.

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