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Mesoscopic fluctuations in quantum dots in the Kondo regime

Publication ,  Journal Article
Kaul, RK; Ullmo, D; Baranger, HU
Published in: Physical Review B - Condensed Matter and Materials Physics
2003

Properties of the Kondo effect in quantum dots depend sensitively on the coupling parameters and so on the realization of the quantum dot-the Kondo temperature itself becomes a mesoscopic quantity. Assuming chaotic dynamics in the dot, we use random matrix theory to calculate the distribution of both the Kondo temperature and the conductance in the Coulomb blockade regime. We study two experimentally relevant cases: leads with single channels and leads with many channels. In the single-channel case, the distribution of the conductance is very wide as TK fluctuates on a logarithmic scale. As the number of channels increases, there is a slow crossover to a self-averaging regime.

Duke Scholars

Published In

Physical Review B - Condensed Matter and Materials Physics

ISSN

0163-1829

Publication Date

2003

Volume

68

Issue

16

Start / End Page

1613051 / 1613054
 

Citation

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Chicago
ICMJE
MLA
NLM
Kaul, R. K., Ullmo, D., & Baranger, H. U. (2003). Mesoscopic fluctuations in quantum dots in the Kondo regime. Physical Review B - Condensed Matter and Materials Physics, 68(16), 1613051–1613054.
Kaul, R. K., D. Ullmo, and H. U. Baranger. “Mesoscopic fluctuations in quantum dots in the Kondo regime.” Physical Review B - Condensed Matter and Materials Physics 68, no. 16 (2003): 1613051–54.
Kaul RK, Ullmo D, Baranger HU. Mesoscopic fluctuations in quantum dots in the Kondo regime. Physical Review B - Condensed Matter and Materials Physics. 2003;68(16):1613051–4.
Kaul, R. K., et al. “Mesoscopic fluctuations in quantum dots in the Kondo regime.” Physical Review B - Condensed Matter and Materials Physics, vol. 68, no. 16, 2003, pp. 1613051–54.
Kaul RK, Ullmo D, Baranger HU. Mesoscopic fluctuations in quantum dots in the Kondo regime. Physical Review B - Condensed Matter and Materials Physics. 2003;68(16):1613051–1613054.

Published In

Physical Review B - Condensed Matter and Materials Physics

ISSN

0163-1829

Publication Date

2003

Volume

68

Issue

16

Start / End Page

1613051 / 1613054