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Non-adiabatic two-parameter charge and spin pumping in a quantum dot

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0801.4925v1.pdf
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2008

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Braun, Matthias

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Zusammenfassung

We study DC charge and spin transport through a weakly coupled quantum dot, driven by a non-adiabatic periodic change of system parameters. We generalize the model of Tien and Gordon to simultaneously oscillating voltages and tunnel couplings. When applying our general result to the two-parameter charge pumping in quantum dots, we find interference effects between the oscillations of the voltage and tunnel couplings. Furthermore, we discuss the possibility to electrically pump a spin current in presence of a static magnetic field.

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530 Physik

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ISO 690BRAUN, Matthias, Guido BURKARD, 2008. Non-adiabatic two-parameter charge and spin pumping in a quantum dot
BibTex
@unpublished{Braun2008Nonad-4904,
  year={2008},
  title={Non-adiabatic two-parameter charge and spin pumping in a quantum dot},
  author={Braun, Matthias and Burkard, Guido}
}
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