Charging effects in quantum wires

Details Charging effects in quantum wires Charging effects in quantum wires

1997-01-09

arxiv.org/abs/cond-mat/9701057v1

Phys. Rev. B 55, 9929 (1997)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 Pages RevTeX, no figures, Phys. Rev. B (in press)

Scientific paper

10.1103/PhysRevB.55.9929

We investigate the role of charging effects in a voltage-biased quantum wire. Both the finite range of the Coulomb interaction and the long-ranged nature of the Friedel oscillation imply a finite capacitance, leading to a charging energy. While observable Coulomb blockade effects are absent for a single impurity, they are crucial if islands are present. For a double barrier, we give the resonance condition, fully taking into account the charging of the island.

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