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arXiv · 2008.05046

Experimental setup for the production of ultracold strongly correlated fermionic superfluids of $^{6}$Li

D. Hernández-Rajkov·J. E. Padilla-Castillo·M. Mendoza-López·R. Colín-Rodríguez·A. Gutiérrez-Valdés·S. A. Morales-Ramírez·R. A. Gutiérrez-Arenas·C. A. Gardea-Flores·G. Roati·R. Jáuregui-Renaud·F. J. Poveda-Cuevas·J. A. Seman
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Abstract

We present our experimental setup to produce ultracold strongly correlated fermionic superfluids made of a two-component spin-mixture of $^6$Li 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 $5 \times 10^4$ 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.

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D. Hernández-Rajkov, J. E. Padilla-Castillo, M. Mendoza-López, R. Colín-Rodríguez, A. Gutiérrez-Valdés, S. A. Morales-Ramírez, R. A. Gutiérrez-Arenas, C. A. Gardea-Flores, G. Roati, R. Jáuregui-Renaud, F. J. Poveda-Cuevas, J. A. Seman. 2020-08-12. Experimental setup for the production of ultracold strongly correlated fermionic superfluids of $^{6}$Li. https://doi.org/10.31349/revmexfis.66.388

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