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arXiv · 0903.1786

Inelastic scattering in a local polaron model with quadratic coupling to bosons

Thomas Olsen
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Abstract

We calculate the inelastic scattering probabilities in the wide band limit of a local polaron model with quadratic coupling to bosons. The central object is a two-particle Green function which is calculated exactly using a purely algebraic approach. Compared with the usual linear interaction term a quadratic interaction term gives higher probabilities for inelastic scattering involving a large number of bosons. As an application we consider the problem hot electron mediated energy transfer at surfaces and use the delta self-consistent field extension of density functional theory to calculate and compare coupling parameters and probabilities for exciting different vibrational modes of CO adsorbed on a Cu(100) surface.

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Thomas Olsen. 2009-03-10. Inelastic scattering in a local polaron model with quadratic coupling to bosons. https://doi.org/10.1103/physrevb.79.235414

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