Experimental setup for the production of ultracold strongly correlated fermionic superfluids of Li-6

Year: 2020

Authors: Hernandez-Rajkov D., Padilla-Castillo JE., Mendoza-Lopez M., Colin-Rodriguez R., Gutierrez-Valdes A., Morales-Ramirez SA., Gutierrez-Arenas RA., Gardea-Flores CA., Jauregui-Renaud R., Seman JA., Poveda-Cuevas FJ., Roati G.

Autors Affiliation: Univ Nacl Autonoma Mexico, Inst Fis, Ciudad De Mexico 01000, Mexico; Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Apartado Postal 55-534, Ciudad De Mexico 09340, Mexico; Univ Nacl Autonoma Mexico, Inst Fis, Catedras CONACyT, Ciudad De Mexico 01000, Mexico; CNR, Ist Nazl Ott, I-50019 Sesto Fiorentino, Italy; CNR, European Lab Nonlinear Spect, INO, I-50019 Sesto Fiorentino, Italy; LENS, I-50019 Sesto Fiorentino, Italy

Abstract: We present our experimental setup to produce ultracold strongly correlated fermionic superfluids made of a two-component spin-mixture of Li-6 atoms. Employing standard cooling techniques, we achieve quantum degeneracy in a single-beam optical dipole trap. Our setup is capable of generating spin-balanced samples at temperatures as low as T/T-F = 0.1 containing up to 5 x 10(4) atomic pairs. We can access different superfluid regimes by tuning the interparticle interactions close to a broad magnetic Feshbach resonance. In particular, we are able to explore the crossover from the molecular Bose-Einstein condensate (BEC) to the Bardeen-Cooper-Schrieffer (BCS) superfluid regimes.


Volume: 66 (4)      Pages from: 388  to: 403

KeyWords: Quantum degenerate gases; fermionic superfluidity; Bose-Einstein condensation; laser cooling and trapping
DOI: 10.31349/RevMexFis.66.388

Citations: 1
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