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Mixture of atomic superfluids and study of the trapping mechanism with vortices

Grant number: 16/22189-6
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2017
Effective date (End): October 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
Principal researcher:Mônica Andrioli Caracanhas Santarelli
Grantee:Dayane Padoan
Home Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:13/07276-1 - CEPOF - Optics and Photonic Research Center, AP.CEPID

Abstract

Through experiments involving condensate of alkaline atom (87)Rb[3,4] and the mixture of two atomic species , (23)Na and (41)K, we observed the presence of vortices and turbulence. Aiming to give support to our experimental research group, the present work has the intention of exploring certain characteristics of the atomic cloud in the quantum regime. We consider two Bose-Einstein condensates, spatially superimposed, in order to analyze the effects of the interaction between these species in the presence of vortices. The meaningful imbalance between the number of atoms of the two species allow us to extract analytical solution for the coupled Gross-Pitaevskii (GPE) equations. Along with numerical simulations of GPE, this solution will be used to study the dynamical properties and the thermodynamic equilibrium of the composed system. (AU)