Ab initio lifetimes in the interatomic Coulombic decay of neon clusters computed with propagators

摘要

Interatomic Coulombic decay (ICD) is a radiationless decay mechanism occurring via electron emission in an inner-valence ionized weakly bound cluster.The ICD has been studied for the neon clusters Ne_n (n=2,...,5).The decay widths of the neon clusters are calculated using ab initio Green's function method.The non-Dyson version of Green's function is employed.This propagator is analytically continued into the complex energy plane with the aid of a complex absorbing potential,and the decaying states are found as resonance states in this plane.