论文标题
双堕胎玻璃纤维纤维纤维混合物和锂的混合物
Double Degenerate Bose-Fermi Mixture of Strontium and Lithium
论文作者
论文摘要
我们报告与$^{84} $ sr接触的$ \ rm^{6} li $的退化费米气体（BEC）。观察到$ t/t_f = 0.33（3）$的退化，$ 1.6 \ times10^5 $ $^{6} $ li原子在两个最低的能量超精美状态下，几乎是$ 3.1 \ times10^5 $ $ $ $^{84} $ sr Atoms。估计$^6 $ li和$^{84} $ sr之间的弹性s波散射长度估计为$ | a _ {\ rm^{6} li- \ rm^{84} sr} sr} | =（7.1 _ { - 1.7}在光学偶极陷阱中。
We report on the attainment of a degenerate Fermi gas of $\rm^{6}Li$ in contact with a Bose-Einstein condensate (BEC) of $^{84}$Sr. A degeneracy of $T/T_F=0.33(3)$ is observed with $1.6\times10^5$ $^{6}$Li atoms in the two lowest energy hyperfine states together with an almost pure BEC of $3.1\times10^5$ $^{84}$Sr atoms. The elastic s-wave scattering length between $^6$Li and $^{84}$Sr is estimated to be $|a_{\rm^{6}Li-\rm^{84}Sr}|=(7.1_{-1.7}^{+2.6})a_0$ ($a_0$ being the Bohr radius) from measured interspecies thermalization rates in an optical dipole trap.
