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Creation of macroscopic superposition states from arrays of Bose-Einstein condensates

J. A. Dunningham·K. Burnett·R. Roth·W. D. Phillips
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Abstract

We consider how macroscopic quantum superpositions may be created from arrays of Bose-Einstein condensates. We study a system of three condensates in Fock states, all with the same number of atoms and show that this has the form of a highly entangled superposition of different quasi-momenta. We then show how, by partially releasing these condensates and detecting an interference pattern where they overlap, it is possible to create a macroscopic superposition of different relative phases for the remaining portions of the condensates. We discuss methods for confirming these superpositions.

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J. A. Dunningham, K. Burnett, R. Roth, W. D. Phillips. 2006-08-30. Creation of macroscopic superposition states from arrays of Bose-Einstein condensates. https://doi.org/10.1088/1367-2630%2F8%2F9%2F182

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