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Picosecond-scale ultrafast many-body dynamics in an ultracold Rydberg-excited atomic mott insulator

We report the observation and control of ultrafast many-body dynamics of electrons in ultracold Rydberg-excited atoms, spatially ordered in a three-dimensional Mott insulator (MI) with unity filling in an optical lattice. By mapping out the time-domain Ramsey interferometry in the picosecond timesca...

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Bibliographic Details
Main Authors: Bharti, Vineet (Author) , Sugawa, S. (Author) , Mizoguchi, M. (Author) , Kunimi, M. (Author) , Zhang, Y. (Author) , de Léséleuc, S. (Author) , Tomita, T. (Author) , Franz, Titus (Author) , Weidemüller, Matthias (Author) , Ohmori, K. (Author)
Format: Article (Journal)
Language:English
Published: 22 September 2023
In: Physical review letters
Year: 2023, Volume: 131, Issue: 12, Pages: 1-7
ISSN:1079-7114
DOI:10.1103/PhysRevLett.131.123201
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.131.123201
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.131.123201
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Author Notes:V. Bharti, S. Sugawa, M. Mizoguchi, M. Kunimi, Y. Zhang, S. de Léséleuc, T. Tomita, T. Franz, M. Weidemüller, and K. Ohmori
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Summary:We report the observation and control of ultrafast many-body dynamics of electrons in ultracold Rydberg-excited atoms, spatially ordered in a three-dimensional Mott insulator (MI) with unity filling in an optical lattice. By mapping out the time-domain Ramsey interferometry in the picosecond timescale, we can deduce entanglement growth indicating the emergence of many-body correlations via dipolar forces. We analyze our observations with different theoretical approaches and find that the semiclassical model breaks down, thus indicating that quantum fluctuations play a decisive role in the observed dynamics. Combining picosecond Rydberg excitation with MI lattice thus provides a platform for simulating nonequilibrium dynamics of strongly correlated systems in synthetic ultracold atomic crystals, such as in a metal-like quantum gas regime.
Item Description:Gesehen am 06.12.2023
Online veröffentlicht: 22 September 2023
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.131.123201

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