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Open Quantum Systems Decoherence

Coherent single atom shuttle between two Bose-Einstein condensates

arXiv
Authors: Uwe R. Fischer, Christian Iniotakis, Anna Posazhennikova

Year

2007

Paper ID

49116

Status

Preprint

Abstract Read

~2 min

Abstract Words

88

Citations

N/A

Abstract

We study an atomic quantum dot representing a single hyperfine "impurity" atom which is coherently coupled to two well-separated Bose-Einstein condensates, in the limit when the coupling between the dot and the condensates dominates the inter-condensate tunneling coupling. It is demonstrated that the quantum dot by itself can induce large-amplitude Josephson-like oscillations of the particle imbalance between the condensates, which display a two-frequency behavior. For noninteracting condensates, we provide an approximate solution to the coupled nonlinear equations of motion which allows us to obtain these two frequencies analytically.

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  • We study an atomic quantum dot representing a single hyperfine "impurity" atom which is coherently coupled to two well-separated Bose-Einstein condensates, in the limit when...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0709.1542 [2] arXiv https://arxiv.org/abs/0709.1542 [3] Publisher https://arxiv.org/abs/0709.1542

Local Citation Graph (Related-Paper Links)

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