BEDRICH, Rainer; BURDIN, Sébastien; HENTSCHEL, Martina

doi:10.1103/PhysRevB.81.174406

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BEDRICH, Rainer
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]

BURDIN, Sébastien
Institut für Theoretische Physik [Köln]
Centre de physique moléculaire optique et hertzienne [CPMOH]

HENTSCHEL, Martina
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]

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Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2010, vol. 81, n° 17, p. 174406 (5)

American Physical Society

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We study the mesoscopic Kondo box, consisting of a quantum spin 1/2 interacting with a chaotic electronic bath as can be realized by a magnetic impurity coupled to electrons on a quantum dot, using a mean-field approach for the Kondo interaction. Its numerical efficiency allows us to analyze the Kondo temperature, the local magnetic susceptibility, and the conductance statistics for a large number of samples with energy levels obtained by random matrix theory. We see pronounced parity effects in the average values and in the probability distributions, depending on an even and odd electronic occupation of the quantum dot, respectively. These parity effects are directly accessible in experiments.< Réduire

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Mesoscopic Kondo Box: A Mean-Field Approach

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