Dion C M, Drag C, Dulieu O, Laburthe Tolra B, Masnou-Seeuws F, Pillet P
Laboratoire Aimé Cotton du CNRS, Bâtiment 505, Campus d'Orsay, 91405 Orsay, France.
Phys Rev Lett. 2001 Mar 12;86(11):2253-6. doi: 10.1103/PhysRevLett.86.2253.
We demonstrate the existence of a new mechanism for the formation of ultracold molecules via photoassociation of cold cesium atoms. The experimental results, interpreted with numerical calculations, suggest that a resonant coupling between vibrational levels of the 0+u (6s+6p1/2) and (6s+6p3/2) states enables formation of ultracold molecules in vibrational levels of the ground state well below the 6s+6s dissociation limit. Such a scheme should be observable with many other electronic states and atomic species.
我们证明了通过冷铯原子的光缔合形成超冷分子的一种新机制的存在。通过数值计算解释的实验结果表明，0+u（6s+6p1/2）和（6s+6p3/2）态的振动能级之间的共振耦合能够在远低于6s+6s解离极限的基态振动能级中形成超冷分子。这样的方案在许多其他电子态和原子种类中应该是可观测的。
