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Publication Citation: Creation of Macroscopic Superposition States from Arrays of Bose-Einstein Condensates

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Author(s): J A. Dunningham; Karen G. Burnett; R Roth; William D. Phillips;
Title: Creation of Macroscopic Superposition States from Arrays of Bose-Einstein Condensates
Published: Date Unknown
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.
Citation: New Journal of Physics
Keywords: Bose-Einstein condensates;Bose-Gubbard Hamiltonian;Fock states;optical lattice;quantum
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