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20 January 2025

» arxiv » cond-mat/0701212

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N-conserving Bogoliubov vacuum of a two component Bose-Einstein condensate: Density fluctuations close to a phase separation condition
Bartlomiej Oles ; Krzysztof Sacha ;
Date:	10 Jan 2007
Subject:	Other
Abstract:	Two component Bose-Einstein condensates are considered within a number conserving version of the Bogoliubov theory. We show that the Bogoliubov vacuum state can be obtained in the particle representation in a simple form. The formalism is used to analyze homogeneous condensates and condensates in a double well potential. We show that for values of system parameters close to a phase separation condition considerable density fluctuations appear. The predicted fluctuations can be measured experimentally.
Source:	arXiv, cond-mat/0701212
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