Complex coordinate calculations of Feshbach resonance energies and widths for a collinear triatomic system@fa@f)

摘要

Complex resonance energies are calculated for a model triatomic system studied previously by Eastes and Marcus lsqb;W. Eastes and R. A. Marcus, J. Chem. Phys.59, 4757 (1973)rsqb;. The complex coordinate method is employed to obtain resonance positions and widths for six states. The positions are all in excellent agreement with previous scattering and stabilization results and there is also good agreement with the one width obtained previously from scattering calculations. The additional widths obtained are given for the first time. Some speculations about possible laser induced absorption and emission among these resonances and true bound states are made.