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

Publikation: Forskning - peer reviewTidsskriftartikel

H.O. Frota, Karsten Flensberg

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.
OriginalsprogEngelsk
TidsskriftPhysical Review B (Condensed Matter and Materials Physics)
Vol/bind46
Tidsskriftsnummer23
Sider (fra-til)15207-15211
Antal sider5
ISSN1098-0121
DOI
StatusUdgivet - 15 dec. 1992

ID: 129606314