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

P Coleman, Christopher Hooley, O Parcollet

Research output: Contribution to journalArticle

54 Citations (Scopus)


We examine the two-lead Kondo model for a dc-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.
Original languageEnglish
Pages (from-to)4088-4091
Number of pages4
JournalPhysical Review Letters
Issue number18
Early online date1 Apr 2001
Publication statusPublished - 1 Apr 2001


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