| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil
[2] DCTA, Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos - Brazil
[3] Univ Estadual Paulista, Inst Fis Teor, BR-01140700 Sao Paulo - Brazil
Total Affiliations: 3
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| Document type: | Journal article |
| Source: | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS; v. 52, n. 2 JAN 28 2019. |
| Web of Science Citations: | 1 |
| Abstract | |
Vortex-lattice patterns with transitions from regular to other variety vortex shapes are predicted in rotating binary mixtures of dipolar Bose-Einstein condensates loaded in squared optical lattices (OLs). We focus our investigation on the experimentally accessible dipolar isotopes of dysprosium (Dy-162,Dy-164), erbium (Er-168), chromium (Cr-52), and rubidium (Rb-87), by considering the binary mixtures (Dy-164-Dy-162, Er-168-Dy-164, Dy-164-Cr-52 and Dy-164-Rb-87), which are confined in strong pancake-shaped traps and loaded in squared two-dimensional (2D) OLs, where we vary the polarization angle of the dipoles, the inter-species contact interactions and the rotation frequency. The ratio between inter- to intra-species contact interaction is used for altering the miscibility properties, with the polarization of the dipolar species used for tuning the dipole-dipole interactions to repulsive or attractive. For enough higher rotation, where the inter- to intra-species scattering length ratio is larger than one, in which a richer variety of vortex-lattice patterns are predicted, including vortex sheets and 2D rotating droplet formations. The patterns can be controlled by changing the OL parameters, as shown for the symmetric Dy-164-Dy-162 dipolar mixture. For mixtures with stronger differences in the dipole moments, such as Dy-164-Cr-52 and Dy-164-Rb-87, only half the quantum vortices and circular ones have been observed, which will depend on the dipole orientations. (AU) | |
| FAPESP's process: | 16/17612-7 - Dynamics of many-body systems IV |
| Grantee: | Arnaldo Gammal |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems |
| Grantee: | Brett Vern Carlson |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/01668-8 - Excitations of dipolar Bose-Einstein condensates |
| Grantee: | Kishor Kumar Ramavarmaraja |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |