| Texto completo | |
| Autor(es): |
Castilho, P. C. M.
[1, 2]
;
Pedrozo-Penafiel, E.
[1, 3, 4]
;
Gutierrez, E. M.
[1]
;
Mazo, P. L.
[1]
;
Roati, G.
[5, 6]
;
Farias, K. M.
[1]
;
Bagnato, V. S.
[1]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Carlos, SP - Brazil
[2] CNRS, Lab Kastler Brossel, Coll France, 11 Pl Marcelin Berthelot, F-75005 Paris - France
[3] MIT, Dept Phys, Harvard Ctr Ultracold Atoms, Cambridge, MA 02139 - USA
[4] MIT, Res Lab Elect, Cambridge, MA 02139 - USA
[5] Univ Florence, INO CNR, Via N Carrara 1, I-50019 Sesto Fiorentino - Italy
[6] Univ Florence, LENS, Via N Carrara 1, I-50019 Sesto Fiorentino - Italy
Número total de Afiliações: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | LASER PHYSICS LETTERS; v. 16, n. 3 MAR 2019. |
| Citações Web of Science: | 1 |
| Resumo | |
We present a compact and versatile experimental system for producing Bose-Bose superfluid mixtures composed of sodium and potassium atoms. The compact design combines the necessary ultra-high vacuum enviroment for ultracold atom experiments with efficient atomic fluxes by using two-dimensional magneto-optical traps as independent source of atoms. We demonstrate the performance of this new machine by producing a Bose-Einstein condensate of Na-23 with similar to 1 x 10(6) atoms. The tunability of Na-K bosonic mixtures is particularly interesting for studies regarding the nucleation of vortices and quantum turbulence. In this direction, the large optical access of the science chamber along the vertical direction provides the conditions to implement high resolution optical setups for imaging and rotating the condensate with a stirring beam. We show the nucleation of a vortex lattice with up to 14 vortices in the Na-23 BEC, attesting the efficiency of the experimental apparatus in studying the dynamics of vortices. (AU) | |
| Processo FAPESP: | 14/14198-0 - Turbulência quântica em um condensado de Bose-Einstein de duas espécies atômicas 23Na-41K com interação variável |
| Beneficiário: | Patrícia Christina Marques Castilho |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 13/07276-1 - CEPOF - Centro de Pesquisa em Óptica e Fotônica |
| Beneficiário: | Vanderlei Salvador Bagnato |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |