Publication: Coherent control of self-trapping of cold bosonic atoms
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2007-03
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American Physical Society
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Abstract
We study the behavior of ultracold bosonic atoms held in an optical lattice. We first show how a self-trapping transition can be induced in the system either by increasing the number of atoms occupying a lattice site or by raising the interaction strength above a critical value. We then investigate how applying a periodic driving potential to the self-trapped state can be used to coherently control the emission of a precise number of correlated bosons from the trapping site. This allows the preparation and transport of entangled bosonic states, which are of great relevance to novel technologies such as quantum-information processing.
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©2007 The American Physical Society.
The author acknowledges numerous stimulating discussions with Tania Monteiro. This work was supported by the EPSRC.
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