Molecular binding in interacting quantum walks

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Ahlbrecht, Andre; Alberti, Andrea; Meschede, Dieter; Scholz, Volkher B.; Werner, Albert H. et al.: Molecular binding in interacting quantum walks. In: New Journal of Physics 14 (2012), 73050. DOI: https://doi.org/10.1088/1367-2630/14/7/073050

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Sum total of downloads: 209




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Abstract: 
We show that the presence of an interaction in the quantum walk of two atoms leads to the formation of a stable compound, a molecular state. The wave function of the molecule decays exponentially in the relative position of the two atoms; hence it constitutes a true bound state. Furthermore, for a certain class of interactions, we develop an effective theory and find that the dynamics of the molecule is described by a quantum walk in its own right. We propose a setup for the experimental realization as well as sketch the possibility to observe quasi-particle effects in quantum many-body systems.
License of this version: CC BY-NC-SA 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2012
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 173 82.78%
2 image of flag of United States United States 11 5.26%
3 image of flag of China China 5 2.39%
4 image of flag of Singapore Singapore 2 0.96%
5 image of flag of Denmark Denmark 2 0.96%
6 image of flag of Cameroon Cameroon 2 0.96%
7 image of flag of Canada Canada 2 0.96%
8 image of flag of Russian Federation Russian Federation 1 0.48%
9 image of flag of Romania Romania 1 0.48%
10 image of flag of Poland Poland 1 0.48%
    other countries 9 4.31%

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