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Analytical descriptions of atomic-scale surface dynamics

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The dynamical behaviour of atoms and molecules adsorbed on solid surfaces is a rich topic relevant to a wide range of chemical and physical applications. Adsorbate motion can be characterized in great detail using helium atom scattering methods, which are sensitive to dynamics at sub-nano length scales and time scales simultaneously. Analytical results for dynamical correlation functions in model systems are critical for interpreting scattering experiments. I will discuss established methods and results for the intermediate scattering function, and extensions to treat quantum Brownian dynamics, coherent band transport, and coupled vibrations and hops in a periodic potential.

This talk is part of the Physics and Chemistry of Solids Group series.

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