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Article Dans Une Revue Physical Review A Année : 2020

Dynamics of the mean-field-interacting quantum kicked rotor

Résumé

We study the dynamics of the many-body atomic kicked rotor with interactions at the mean-field level, governed by the Gross-Pitaevskii equation. We show that dynamical localization is destroyed by the interaction, and replaced by a subdiffusive behavior. In contrast to results previously obtained from a simplified version of the Gross-Pitaevskii equation, the subdiffusive exponent does not appear to be universal. By studying the phase of the mean-field wave function, we propose a new approximation that describes correctly the dynamics at experimentally relevant times close to the start of subdiffusion, while preserving the reduced computational cost of the former approximation.
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Dates et versions

hal-02567094 , version 1 (22-12-2023)

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Samuel Lellouch, Adam Rançon, Stephan De Bièvre, Dominique Delande, Jean Claude Garreau. Dynamics of the mean-field-interacting quantum kicked rotor. Physical Review A, 2020, 101 (4), ⟨10.1103/PhysRevA.101.043624⟩. ⟨hal-02567094⟩
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