Scattering Approach to Two-Hole Final States
As is well-known, repulsive excited states may lead to desorption only if their life-time is long enough to allow for the desorbing particle to escape from the FRANCK-CONDON region. States with two localized holes are good examples of long-lived excited states. Recent work has shown |1| that electron correlations in the ground state are vital to bring these two-hole states into the picture. These states have been very useful in providing an explicit mechanism for desorption which complements, rather than contradicts, the MGR model |2|.
KeywordsGreen Function Clean Metal Explicit Mechanism Ionization Hole Parabolic Density
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