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Many-body quantum coherence and interaction blockade in Josephson-linked Bose-Einstein condensates

Li (Lee), Chaohong; Fu, Libin; Kivshar, Yuri

Description

We study many-body quantum coherence and interaction blockade in two Josephson-linked Bose-Einstein condensates. We introduce universal operators for characterizing many-body coherence without limitations on the system symmetry and total particle number N. We reproduce the results for both coherence fluctuations and number squeezing in symmetric systems of large N, and reveal several peculiar phenomena that may occur in asymmetric systems and systems of small N. For asymmetric systems, we show...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/28829
Source: Europhysics Letters
DOI: 10.1209/0295-5075/81/60006

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