Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Phys Rev Lett. 2012 Feb 3;108(5):053001. doi: 10.1103/PhysRevLett.108.053001. Epub 2012 Jan 31.
We explore the complete breakup of the Li atom after absorption of a single photon, the purest example of the so-called four-body Coulomb problem. The resulting strongly correlated three-electron continuum is investigated by calculating the angular distributions of the ionized electrons using advanced close-coupling techniques. We find that the distributions are dominated by the Coulomb interactions between the electrons, that multiple break-up processes can be identified, and that the complex dynamics of the fragmentation process are evident for most scattering geometries.
我们探索了 Li 原子在吸收单个光子后完全分裂的过程，这是所谓的四体库仑问题的最纯粹示例。通过使用先进的密耦技术计算离化电子的角分布，我们研究了由此产生的强关联三电子连续谱。我们发现，分布主要由电子之间的库仑相互作用决定，可以识别出多个离解过程，并且在大多数散射几何中，碎片过程的复杂动力学是显而易见的。
