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Unstable particles versus resonances in impurity systems, conductance in quantum wires

Castro-Alvaredo, O. and Fring, A. (2002). Unstable particles versus resonances in impurity systems, conductance in quantum wires. Journal of Physics: Condensed Matter, 14(47), doi: http://iopscience.iop.org/article/10.1088/0953-8984/14/47/101

Abstract

We compute the DC conductance for a homogeneous sine-Gordon model and an impurity system of Luttinger liquid type by means of the thermodynamic Bethe ansatz and standard potential scattering theory. We demonstrate that unstable particles and resonances in impurity systems lead to a sharp increase of the conductance as a function of the temperature, which is characterized by the Breit-Wigner formula.

Publication Type: Article
Additional Information: This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Physics: Condensed Matter. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi: 10.1088/0953-8984/14/47/101
Subjects: Q Science > QA Mathematics
Departments: School of Mathematics, Computer Science & Engineering > Mathematics
URI: http://openaccess.city.ac.uk/id/eprint/16435
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