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Elastic scattering time of matter waves in disordered potentials

We report on an extensive study of the elastic scattering time τs of matter waves in optical disordered potentials. Using direct experimental measurements, numerical simulations, and comparison with the first-order Born approximation based on the knowledge of the disorder properties, we explore the...

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Hauptverfasser: Richard, Jérémie (VerfasserIn) , Lim, Lih-King (VerfasserIn) , Denechaud, Vincent (VerfasserIn) , Volchkov, Valentin V. (VerfasserIn) , Lecoutre, Baptiste (VerfasserIn) , Mukhtar, Musawwadah (VerfasserIn) , Jendrzejewski, Fred (VerfasserIn) , Aspect, Alain (VerfasserIn) , Signoles, Adrien (VerfasserIn) , Sanchez-Palencia, Laurent (VerfasserIn) , Josse, Vincent (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 13 March 2019
In: Physical review letters
Year: 2019, Jahrgang: 122, Heft: 10, Pages: 1-6
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.100403
Online-Zugang:Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.122.100403
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.122.100403
Volltext
Verfasserangaben:Jérémie Richard, Lih-King Lim, Vincent Denechaud, Valentin V. Volchkov, Baptiste Lecoutre, Musawwadah Mukhtar, Fred Jendrzejewski, Alain Aspect, Adrien Signoles, Laurent Sanchez-Palencia, and Vincent Josse
Beschreibung
Zusammenfassung:We report on an extensive study of the elastic scattering time τs of matter waves in optical disordered potentials. Using direct experimental measurements, numerical simulations, and comparison with the first-order Born approximation based on the knowledge of the disorder properties, we explore the behavior of τs over more than 3 orders of magnitude, ranging from the weak to the strong scattering regime. We study in detail the location of the crossover and, as a main result, we reveal the strong influence of the disorder statistics, especially on the relevance of the widely used Ioffe-Regel-like criterion kls∼1. While it is found to be relevant for Gaussian-distributed disordered potentials, we observe significant deviations for laser speckle disorders that are commonly used with ultracold atoms. Our results are crucial for connecting experimental investigation of complex transport phenomena, such as Anderson localization, to microscopic theories.
Beschreibung:Gesehen am 16.04.2019
Beschreibung:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.100403

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