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Coulomb Blockade Resonances in Quantum Wires

T. Rejec·A. Ramsak·J. H. Jefferson
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Abstract

The conductance through a quantum wire of cylindrical cross section and a weak bulge is solved exactly for two electrons within the Landauer-Buettiker formalism. We show that this 'open' quantum dot exhibits spin-dependent Coulomb blockade resonances resulting in two anomalous structure on the rising edge to the first conductance plateau, one near 0.25(2e^2/h), related to a singlet resonance, and one near 0.7(2e^2/h), related to a triplet resonance. These resonances are generic and robust, occurring for other types of quantum wire and surviving to temperatures of a few degrees.

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T. Rejec, A. Ramsak, J. H. Jefferson. 1999-10-25. Coulomb Blockade Resonances in Quantum Wires. https://doi.org/10.1103/physrevb.62.12985

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