https://doi.org/10.1140/epjp/s13360-025-06675-5
Regular Article
Quench dynamics of disordered quadrupolar Bose–Einstein condensates
1
Department of Physics, Faculty of Exact Sciences and Informatics, Hassiba Benbouali University of Chlef, P.O. Box 78, 02000, Ouled-Fares, Chlef, Algeria
2
Laboratory of Mechanics and Energy, Hassiba Benbouali University of Chlef, P.O. Box 78, 02000, Ouled-Fares, Chlef, Algeria
Received:
8
March
2025
Accepted:
21
July
2025
Published online:
4
August
2025
We systematically investigate the equilibrium and the nonequilibrium quench dynamics of three-dimensional disordered quadrupolar Bose–Einstein condensates. Within the Bogoliubov–Huang–Meng approximation, we show that the combined effect of quenched interactions, disorder and excitations may modify the static as well as the dynamic properties of the system. The validity criterion of the developed approach is accurately established. By quenching the interaction strength, we reveal that the quantum depletion and the deformation condensate induced by disorder are enhanced in the asymptotic steady state compared to the corresponding equilibrium values. The time evolution of the condensate deformation is accompanied by damped oscillations with amplitudes strongly depending on the disorder correlation length and on the relative quadrupolar interaction.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
