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arXiv · 1008.5120

ac-dc voltage profile and four point impedance of a quantum driven system

Federico Foieri·Liliana Arrachea
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Abstract

We investigate the behavior of the time-dependent voltage drop in a periodically driven quantum conductor sensed by weakly coupled dynamical voltages probes. We introduce the concepts of ac-dc local voltage and four point impedance in an electronic system driven by ac fields. We discuss the properties of the different components of these quantities in a simple model of a quantum pump, where two ac voltages oscillating with a phase lag are applied at the walls of a quantum dot.

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Federico Foieri, Liliana Arrachea. 2010-08-30. ac-dc voltage profile and four point impedance of a quantum driven system. https://doi.org/10.1103/physrevb.82.125434

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