论文标题
在三个原子系统中共同增强了原子间库仑电子捕获
Resonantly enhanced interatomic Coulombic electron capture in a system of three atoms
论文作者
论文摘要
在原子间库仑电子捕获中，在原子中心捕获了一个游离电子，伴随着多余能量的辐射转移到不同物种的相邻原子，从而导致后者电离。我们表明，如果存在第一个原子中自由结合的捕获过渡的能量，可以通过在第一个原子中的自由结合捕获过渡的能量来强烈增强这种原子间过程。讨论了共鸣增强的三中心电子捕获与其他过程的关系，并说明了其对入射电子能量的依赖性和triatomic系统的空间几何形状。
In interatomic Coulombic electron capture, the capture of a free electron at an atomic center is accompanied by the radiationless transfer of the excess energy to a neighboring atom of different species, leading to ionization of the latter. We show that this interatomic process can be strongly enhanced by the presence of an additional third atom, provided the energy of the free-bound capture transition in the first atom is resonant to a dipole-allowed excitation energy in this assisting atom. The relation of the resonantly enhanced three-center electron capture with other processes is discussed, and its dependencies on the incident electron energy and the spatial geometry of the triatomic system are illustrated.
