Theory of measuring the "Luttinger-g" of a one-dimensional quantum dot

Details Theory of measuring the "Luttinger-g" of a one-dimensional quantum dot Theory of measuring the "Luttinger-g" of a one-dimensional quantum dot

2002-08-20

arxiv.org/abs/cond-mat/0208384v2

Phys. Rev. B 66, 165311 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 colour figures, to be published with Phys. Rev. B

Scientific paper

10.1103/PhysRevB.66.165311

We study electron transport through a quantum dot in a Tomonaga-Luttinger liquid with an inhomogeneity induced either by a non-uniform electron interaction or by the presence of tunnel resistances of contacts. The non-analytic temperature behavior of the conductance peaks show crossovers determined by the different energy scales associated with the dot and the inhomogeneity despite the Coulomb blockade remains intact. This suggests an explanation of recent findings in semiconductor quantum wires and carbon nanotubes.

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