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Is the quantum dot at large bias a weak-coupling problem?

Research output: Contribution to journalArticle

Author(s)

P Coleman, Christopher Hooley, O Parcollet

School/Research organisations

Abstract

We examine the two-lead Kondo model for a de-biased quantum dot in the Coulomb blockade regime. From perturbative calculations of the magnetic susceptibility, we show that the problem retains its strong-coupling nature, even at bias voltages larger than the equilibrium Kondo temperature. We give a speculative discussion of the nature of the renormalization group flows and the strong-coupling state that emerges at large voltage bias.

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Details

Original languageEnglish
Pages (from-to)4088
Number of pages4091
JournalPhysical Review Letters
Volume86
DOIs
Publication statusPublished - 30 Apr 2001

    Research areas

  • TIME RENORMALIZATION-GROUP, ARTIFICIAL ATOMS, ANDERSON MODEL, KONDO, TRANSPORT, EQUILIBRIUM, LIMIT, IMPURITY, CURRENTS

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