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SUMMARY:Modelling of adiabatic transport: pumped charge quantization and b
 eyond - Dr. Vyacheslavs  Kashcheyevs (Tel-Aviv University\, Israel)
DTSTART:20060925T131500Z
DTEND:20060925T141500Z
UID:TALK5354@talks.cam.ac.uk
CONTACT:K DAS GUPTA
DESCRIPTION:Landauer-Buttiker scattering formalism provides a well-establi
 shed\n framework for the description of stationary electron transport in s
 mall\n coherent structures. Recent generalizations allow calculation of th
 e\n current in the presence of a periodic external perturbation such as a\
 n surface-acoustic-wave-induced potential. We shall discuss in details the
 \n key concepts and assumptions underlying the formalism\, and demonstrate
 \n the simplicity of the actual calculation. Applicability of the theory t
 o\n real-world devices is gauged by comparing to recent measurements of\n 
 double quantum dot and carbon nanotube devices at NPL and Cambridge.\n    
                       \n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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