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Modelling of adiabatic transport: pumped charge quantization and beyond

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Landauer-Buttiker scattering formalism provides a well-established framework for the description of stationary electron transport in small coherent structures. Recent generalizations allow calculation of the current in the presence of a periodic external perturbation such as a surface-acoustic-wave-induced potential. We shall discuss in details the key concepts and assumptions underlying the formalism, and demonstrate the simplicity of the actual calculation. Applicability of the theory to real-world devices is gauged by comparing to recent measurements of double quantum dot and carbon nanotube devices at NPL and Cambridge.

This talk is part of the Semiconductor Physics series.

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