论文标题

生产超低$^{6} $ li的超速相关的fermionic超级流体的实验设置

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

论文作者

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

论文摘要

我们介绍了实验设置,以产生由$^6 $ li Atoms的两个组分旋转混合物制成的超速相关的费米子超级流体。采用标准冷却技术,我们在单光束光学偶极子陷阱中实现了量子退化。我们的设置能够在低至$ t/t_f = 0.1 $的温度下生成自旋平衡的样品,其中最多$ 5 \ times 10^4 $原子对。我们可以通过调整接近宽阔的磁力共振的粒子间相互作用来访问不同的超流体状态。特别是,我们能够探索从分子bose-Einstein冷凝物(BEC)到Bardeen-Cooper-Schrieffer(BCS)超级流体制度的交叉。

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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