Palestrante
Descrição
In this work, we present the state of the art of our experiment for a mixture of Na and K Bose-Einstein Condensates. The specific case of Na-K mixtures is of particular interest due to its large flexibility, with Bose-Bose and Bose-Fermi mixtures could be produced by changing the potassium isotope and the different miscibility regimes, explored with the tuning of the interspecies interactions via the Feshbach resonances for each combination. (1) We are going to investigate effects related to two different species as effects of transferring quantum excitations, vortices and lattices formation, and quantum turbulence, as well using this flexibility. Our experimental system is a composition of two independently atomic sources attached to the main chamber, which is the Science chamber. We produce magneto-optical traps (MOT) of Na and K atoms from 2D MOTs, which utilize a novel Zeeman slower configuration. For the case of K, it is the first time that technique is implemented. We are running the Na BEC from an Optical Trap and started first experiments on Lattices Vortices formation. Results also related to K will be presented here, as the process using Gray Molasses (2) to deeply cooling, which is a necessary procedure to mixture both species.
Referências
1 CHIN, C. et al. Feshbach resonances in ultracold gases. Reviews of Modern Physics, v. 82, n. 2, p. 1225-1286, Apr. 2010.
2 CHEN, H.-Z. et al. Production of large 41K Bose-Einstein condensates using D1 gray molasses. Physical Review A v. 94, n. 3, p. 033408-1-033408-6, Sept. 2016.
| Subárea | Física Atômica e Molecular |
|---|---|
| Apresentação do trabalho acadêmico para o público geral | Sim |
