Long distance coupling of a quantum mechanical oscillator to the internal states of an atomic ensemble

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Vogell, B.; Kampschulte, T.; Rakher, M. T.; Faber, A.; Treutlein, P. Et al.: Long distance coupling of a quantum mechanical oscillator to the internal states of an atomic ensemble. In: New Journal of Physics 17 (2015), 43044. DOI: http://dx.doi.org/10.1088/1367-2630/17/4/043044

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We propose and investigate a hybrid optomechanical system consisting of a micro-mechanical oscillator coupled to the internal states of a distant ensemble of atoms. The interaction between the systems is mediated by a light field which allows the coupling of the two systems in a modular way over long distances. Coupling to internal degrees of freedom of atoms opens up the possibility to employ high-frequency mechanical resonators in the MHz to GHz regime, such as optomechanical crystal structures, and to benefit from the rich toolbox of quantum control over internal atomic states. Previous schemes involving atomic motional states are rather limited in both of these aspects. We derive a full quantum model for the effective coupling including the main sources of decoherence. As an application we show that sympathetic ground-state cooling and strong coupling between the two systems is possible.
License of this version: CC BY 3.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2015-04-22
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
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1 image of flag of Germany Germany 99 68.75%
2 image of flag of United States United States 16 11.11%
3 image of flag of China China 13 9.03%
4 image of flag of No geo information available No geo information available 3 2.08%
5 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 2 1.39%
6 image of flag of Italy Italy 1 0.69%
7 image of flag of India India 1 0.69%
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9 image of flag of Hong Kong Hong Kong 1 0.69%
10 image of flag of Austria Austria 1 0.69%
    other countries 6 4.17%

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