https://doi.org/10.1140/epjb/s10051-024-00672-w
Regular Article - Solid State and Materials
Diffusive expansion of a dipolar Bose–Einstein condensate in three-dimensional disorder potentials
1
Department of Physics, Faculty of Sciences and Technology, Ahmed Zabana University of Relizane, P.O. Box 48000, Bourmadia, Relizane, Algeria
2
Laboratory of Mechanics and Energy, Department of Physics, Faculty of Exact Sciences and Informatics, Hassiba Benbouali University of Chlef, P.O. Box 78, 02000, Chlef, Algeria
Received:
2
May
2023
Accepted:
12
March
2024
Published online:
3
April
2024
We study the effects of dipole–dipole interactions on the diffusion of an expanding atomic Bose–Einstein condensate with tunable s-wave interactions in three-dimensional disorder potentials. First-order correction due to local and nonlocal nonlinearities to the average atomic density is analytically calculated in the long expanding time limit using a perturbative theory. It is found that the diffusion coefficient exhibits a stronger anisotropy dependence due to the dipolar interactions. We show that the intriguing interplay of dipolar and nondipolar interactions and disorder potential may affect the diffusive expansion.
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