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Dipolar condensed atomic mixtures and miscibility under rotation

by Lauro Tomio, R. Kishor Kumar and Arnaldo Gammal

Submission summary

As Contributors: LAURO TOMIO
Preprint link: scipost_201911_00021v1
Date submitted: 2019-11-07
Submitted by: TOMIO, LAURO
Submitted to: SciPost Physics Proceedings
Proceedings issue: 24th European Few Body Conference (University of Surrey, U.K.)
Discipline: Physics
Subject area: Quantum Physics
Approach: Theoretical

Abstract

By considering symmetric and asymmetric dipolar coupled mixtures (with dysprosium and erbium isotopes), we report a study on relevant anisotropic effects, related to spatial separation and miscibility, due to dipole-dipole interactions (DDIs) in rotating binary dipolar Bose-Einstein condensates. The binary mixtures are kept in strong pancake-like traps, with repulsive two-body interactions modeled by an effective two-dimensional (2D) coupled Gross-Pitaevskii equation. The DDI are tuned from repulsive to attractive by varying the dipole polarization angle. A clear spatial separation is verified in the densities for attractive DDIs, being angular for symmetric mixtures and radial for asymmetric ones. Also relevant is the mass-imbalance sensibility observed by the vortex-patterns in symmetric and asymmetric-dipolar mixtures. In an extension of this study, here we show how the rotational properties and spatial separation of these dipolar mixture are affected by a quartic term added to the harmonic trap of one of the components.

Current status:
Editor-in-charge assigned


Submission & Refereeing History

Submission scipost_201911_00021v1 on 7 November 2019

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