Experimental setup for the production of ultracold strongly correlated fermionic superfluids of ^(6)Li

• D. Hernández-Rajkov ^[1] ; J. E. Padilla-Castillo ^[1] ; M. Mendoza-López ^[1] ; R. Colín-Rodríguez ^[3] ; A. Gutiérrez-Valdés ^[1] ; S. A. Morales-Ramírez ^[1] ; R. A. Gutiérrez-Arenas ^[1] ; C. A. Gardea-Flores ^[1] ; R. Jáuregui-Renaud ^[1] ; J. A. Seman ^[1] ; F. J. Poveda Cuevas ^[1] ; G. Roati ^[2]
  1. [1] Universidad Nacional Autónoma de México

     Universidad Nacional Autónoma de México

     México

     
  2. [2] Istituto Nazionale di Ottica

     Istituto Nazionale di Ottica

     Firenze, Italia

     
  3. [3] Universidad Nacional Autónoma Metropolitana-Iztapalapa, Ciudad de México, México

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• Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 66, Nº. 4, 2020, págs. 388-403
• Idioma: inglés
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• Resumen

  • 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 × 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.