Joint Quantum Institute, National Institute of Standards and Technology and The University of Maryland, 100 Bureau Drive Stop 8423, Gaithersburg, Maryland 20899-8423, USA.
Faraday Discuss. 2009;142:361-88; discussion 429-61. doi: 10.1039/b820917k.
Ultracold collisions of cold atoms or molecules make the bound states of the collision complex formed from the two colliding species accessible for control and manipulation of the cold species or the complex. Such resonances are best treated by a resonant scattering theory, which in the ultracold domain can take advantage of the properties of the long-range potential and the methods of multichannel quantum defect theory. Coupled channels calculations on the threshold scattering states and bound states of the 40K87Rb molecule illustrate the ideas and methodology of quantum defect theory using the long-range potential and also demonstrate the spin properties of the bound states throughout the spectrum.
超冷原子或分子的碰撞使得来自两个碰撞物种的碰撞复合物的束缚态可以被控制和操纵，从而对冷物种或复合物进行控制和操纵。这种共振最好通过共振散射理论来处理，在超冷领域，可以利用远程势的性质和多通道量子亏损理论的方法。对 40K87Rb 分子的阈散射态和束缚态的耦合通道计算，说明了使用远程势的量子亏损理论的思想和方法，也展示了束缚态在整个光谱中的自旋性质。
