Cubizolles J, Bourdel T, Kokkelmans S J J M F, Shlyapnikov G V, Salomon C
Laboratoire Kastler Brossel, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris 05, France.
Phys Rev Lett. 2003 Dec 12;91(24):240401. doi: 10.1103/PhysRevLett.91.240401. Epub 2003 Dec 8.
We create weakly bound Li2 molecules from a degenerate two component Fermi gas by sweeping a magnetic field across a Feshbach resonance. The atom-molecule transfer efficiency can reach 85% and is studied as a function of magnetic field and initial temperature. The bosonic molecules remain trapped for 0.5 s and their temperature is within a factor of 2 from the Bose-Einstein condensation temperature. A thermodynamical model reproduces qualitatively the experimental findings.
我们通过在费什巴赫共振处扫描磁场，从简并的双组分费米气体中制备出弱束缚的Li₂分子。原子 - 分子转移效率可达85%，并作为磁场和初始温度的函数进行了研究。玻色子分子能被囚禁0.5秒，其温度与玻色 - 爱因斯坦凝聚温度相差不到两倍。一个热力学模型定性地再现了实验结果。
