Measuring Fractional Charge in Carbon Nanotubes

Details Measuring Fractional Charge in Carbon Nanotubes Measuring Fractional Charge in Carbon Nanotubes

2000-08-11

arxiv.org/abs/cond-mat/0008188v1

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 2 figures

Scientific paper

The Luttinger model of the one-dimensional Fermi gas is the cornerstone of modern understanding of interacting electrons in one dimension. In fact, the enormous class of systems whose universal behavior is adiabatically connected to it are now deemed Luttinger liquids. Recently, it has been shown that metallic single-walled carbon nanotubes are almost perfectly described by the Luttinger Hamiltonian. Indeed, strongly non-Fermi liquid behavior has been observed in a variety of DC transport experiments, in very good agreement with theoretical predictions. Here, we describe how fractional quasiparticle charge, a fundamental property of Luttinger liquids, can be observed in impurity-induced shot noise.

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