标题： 全光生成量子简并和$^6$锂分子玻色-爱因斯坦凝聚 显示英文标题

标题： All-Optical Production of quantum degeneracy and molecular BEC of $^6$Li

摘要： 我们通过在高功率交叉光学偶极子陷阱中直接蒸发冷却，在$^6$Li 的两个最低超精细态的混合物中实现了高度简并且强相互作用的费米气体。 该陷阱由一个包含大量原子数的磁光陷阱（MOT）加载，该磁光陷阱由波长为 671 nm、腔内频率倍频输出功率为 2.5 瓦的激光系统实现。 利用该系统，我们还展示了分子玻色-爱因斯坦凝聚体（mBEC）的产生，并观察了所谓 BEC-BCS 转变区域中费米气体的各向异性膨胀。 显示英文摘要

摘要： We achieve a highly degenerate and strongly interacting Fermi gas in a mixture of the two lowest hyperfine states of $^6$Li by direct evaporative cooling in a high power crossed optical dipole trap. The trap is loaded from a large atom number magneto-optical trap (MOT) which is realized by a laser system of 2.5-watts intracavity-frequency-doubled light output at 671 nm. With this system, we also demonstrate the production of a molecular Bose-Einstein condensates (mBEC), and observe the anisotropic expansion of Fermi gases in the so-called BEC-BCS crossover regime.