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.
Cited by 1
Lee et al., Miscibility and stability of dipolar bosonic mixtures
Phys. Rev. A 103, 063301 (2021) [Crossref]
Authors / Affiliations: mappings to Contributors and OrganizationsSee all Organizations.
- 1 Lauro Tomio,
- 1 2 Ramavarmaraja Kishor Kumar,
- 3 Arnaldo Gammal
- 1 Universidade Estadual Paulista "Júlio de Mesquita Filho" / Sao Paulo State University [UNESP]
- 2 The Dodd-Walls Centre for Photonic and Quantum Technologies [DWC]
- 3 Universidade de São Paulo / University of Sao Paulo [USP]
- Conselho Nacional de Desenvolvimento Científico e Tecnológico / National Council for Scientific and Technological Development [CNPq]
- Fundação de Amparo à Pesquisa do Estado de São Paulo / São Paulo Research Foundation [FAPESP]
- Marsden Fund (through Organization: Royal Society Te Apārangi / Royal Society of New Zealand)