Electric Quantum Walks with Individual Atoms

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Genske, M. et al.: Electric Quantum Walks with Individual Atoms. In: Physical Review Letters 110 (2013), Nr. 19, 190601. DOI: https://doi.org/10.1103/PhysRevLett.110.190601

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Sum total of downloads: 126




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We report on the experimental realization of electric quantum walks, which mimic the effect of an electric field on a charged particle in a lattice. Starting from a textbook implementation of discrete-time quantum walks, we introduce an extra operation in each step to implement the effect of the field. The recorded dynamics of such a quantum particle exhibits features closely related to Bloch oscillations and interband tunneling. In particular, we explore the regime of strong fields, demonstrating contrasting quantum behaviors: quantum resonances versus dynamical localization depending on whether the accumulated Bloch phase is a rational or irrational fraction of 2π.We report on the experimental realization of electric quantum walks, which mimic the effect of an electric field on a charged particle in a lattice. Starting from a textbook implementation of discrete-time quantum walks, we introduce an extra operation in each step to implement the effect of the field. The recorded dynamics of such a quantum particle exhibits features closely related to Bloch oscillations and interband tunneling. In particular, we explore the regime of strong fields, demonstrating contrasting quantum behaviors: quantum resonances versus dynamical localization depending on whether the accumulated Bloch phase is a rational or irrational fraction of 2π.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2013
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 76 60.32%
2 image of flag of United States United States 15 11.90%
3 image of flag of China China 13 10.32%
4 image of flag of Ireland Ireland 2 1.59%
5 image of flag of Hong Kong Hong Kong 2 1.59%
6 image of flag of United Kingdom United Kingdom 2 1.59%
7 image of flag of France France 2 1.59%
8 image of flag of Brazil Brazil 2 1.59%
9 image of flag of Indonesia Indonesia 1 0.79%
10 image of flag of Hungary Hungary 1 0.79%
    other countries 10 7.94%

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