Quantized dynamics of a coherent capacitor

Details Quantized dynamics of a coherent capacitor Quantized dynamics of a coherent capacitor

2007-07-13

arxiv.org/abs/0707.1927v3

Phys. Rev. Lett. v.100, 086601 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.100.086601

A quantum coherent capacitor subject to large amplitude pulse cycles can be made to emit or reabsorb an electron in each half cycle. Quantized currents with pulse cycles in the GHz range have been demonstrated experimentally. We develop a non-linear dynamical scattering theory for arbitrary pulses to describe the properties of this very fast single electron source. Using our theory we analyze the accuracy of the current quantization and investigate the noise of such a source. Our results are important for future scientific and possible metrological applications of this source.

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