Suno H, Esry B D, Greene Chris H
Department of Physics, Kansas State University, Manhattan 66506, USA.
Phys Rev Lett. 2003 Feb 7;90(5):053202. doi: 10.1103/PhysRevLett.90.053202. Epub 2003 Feb 5.
Three-body recombination of identical, spin-polarized fermionic atoms in the ultracold limit is investigated using model interactions. The mechanisms for recombination are parametrized by the "scattering volume" V(p) and described in the framework of the adiabatic hyperspherical representation. We have calculated the recombination rate K3 as a function of V(p) and have found K3 proportional, variant |V(p)|(8/3) for small |V(p)|. Recombination near a two-body Feshbach resonance can thus be significant.
利用模型相互作用研究了超冷极限下相同的、自旋极化的费米子原子的三体复合。复合机制由“散射体积”V(p)参数化，并在绝热超球表示框架内进行描述。我们计算了复合率K3作为V(p)的函数，发现对于小的|V(p)|，K3与|V(p)|(8/3)成正比且呈变化关系。因此，在两体费什巴赫共振附近的复合可能很显著。
