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Mesoscopic fluctuations in quantum dots in the Kondo regime

Publication ,  Journal Article
Kaul, K; Ullmo, D; Baranger, HU
Published in: Physical Review B - Condensed Matter and Materials Physics
January 1, 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. © 2003 The American Physical Society.

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Published In

Physical Review B - Condensed Matter and Materials Physics

DOI

EISSN

1550-235X

ISSN

1098-0121

Publication Date

January 1, 2003

Volume

68

Issue

16

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences
 

Citation

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Kaul, 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). https://doi.org/10.1103/PhysRevB.68.161305
Kaul, 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 (January 1, 2003). https://doi.org/10.1103/PhysRevB.68.161305.
Kaul K, Ullmo D, Baranger HU. Mesoscopic fluctuations in quantum dots in the Kondo regime. Physical Review B - Condensed Matter and Materials Physics. 2003 Jan 1;68(16).
Kaul, K., et al. “Mesoscopic fluctuations in quantum dots in the Kondo regime.” Physical Review B - Condensed Matter and Materials Physics, vol. 68, no. 16, Jan. 2003. Scopus, doi:10.1103/PhysRevB.68.161305.
Kaul K, Ullmo D, Baranger HU. Mesoscopic fluctuations in quantum dots in the Kondo regime. Physical Review B - Condensed Matter and Materials Physics. 2003 Jan 1;68(16).

Published In

Physical Review B - Condensed Matter and Materials Physics

DOI

EISSN

1550-235X

ISSN

1098-0121

Publication Date

January 1, 2003

Volume

68

Issue

16

Related Subject Headings

  • Fluids & Plasmas
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences