Kondo effect in complex quantum dots in the presence of an oscillating and fluctuating gate signal

M. N. Kiselev; K. Kikoin; J. Richert

doi:10.1103/PhysRevB.81.115330

Kondo effect in complex quantum dots in the presence of an oscillating and fluctuating gate signal

M. N. Kiselev, K. Kikoin, J. Richert

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We show how the charge input signal applied to the gate electrode in double and triple quantum dots may be converted to a pulse in the Kondo cotunneling current being a spin response of a nanodevice under a strong Coulomb blockade. The stochastic component of the input signal results in the infrared cutoff of Kondo transmission. The stochastization of the orbital component of the Kondo effect in triple quantum dots results in a noise-induced SU (4) →SU (2) quantum transition.

Original language	English
Article number	115330
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	81
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.81.115330
State	Published - 26 Mar 2010
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.81.115330

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abstract = "We show how the charge input signal applied to the gate electrode in double and triple quantum dots may be converted to a pulse in the Kondo cotunneling current being a spin response of a nanodevice under a strong Coulomb blockade. The stochastic component of the input signal results in the infrared cutoff of Kondo transmission. The stochastization of the orbital component of the Kondo effect in triple quantum dots results in a noise-induced SU (4) →SU (2) quantum transition.",

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N2 - We show how the charge input signal applied to the gate electrode in double and triple quantum dots may be converted to a pulse in the Kondo cotunneling current being a spin response of a nanodevice under a strong Coulomb blockade. The stochastic component of the input signal results in the infrared cutoff of Kondo transmission. The stochastization of the orbital component of the Kondo effect in triple quantum dots results in a noise-induced SU (4) →SU (2) quantum transition.

AB - We show how the charge input signal applied to the gate electrode in double and triple quantum dots may be converted to a pulse in the Kondo cotunneling current being a spin response of a nanodevice under a strong Coulomb blockade. The stochastic component of the input signal results in the infrared cutoff of Kondo transmission. The stochastization of the orbital component of the Kondo effect in triple quantum dots results in a noise-induced SU (4) →SU (2) quantum transition.

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Kondo effect in complex quantum dots in the presence of an oscillating and fluctuating gate signal

Abstract

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