Renormalization-group calculations of ground-state and transport properties of ultrasmall tunnel junctions

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We have done a numerical renormalization-group calculation for a Hamiltonian modeling charging effect in ultrasmall tunnel junctions. We find that the conductance is enhanced by the quantum charge fluctuations allowing tunneling below the charging energy gap. However, in all cases the conductance is found to vanish at zero frequency.
Original languageEnglish
JournalPhysical Review B
Issue number23
Pages (from-to)15207-15211
Number of pages5
Publication statusPublished - 15 Dec 1992

ID: 129606314