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Theoretical And Computational Study Of Time Dependent Scattering On A 2d Surface, Michael Sohn
Theoretical And Computational Study Of Time Dependent Scattering On A 2d Surface, Michael Sohn
UNLV Theses, Dissertations, Professional Papers, and Capstones
The quantum mechanical treatment of the elastic scattring of atoms from a crystal surface provides valuable information, such as surface properties and gas-surface interaction potentials. However, since it is based on the stationary state solution, it does not provide the details of the scattering process in the neighborhood of the surface, especially when atoms are physically adsorbed. In this thesis, the time evolution of the scattering process is treated in 2D with a model potential, V(x, z) = -|g|δ(z) + λδ(z)cos(2πx/a), using the Gaussian wave packet approach. The focus is on the case where the Gaussian wave packet makes a …