Random matrix approach to `nonuniversal' conductance

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Recent experiments on the conductance of high quality quantum wires have revealed an unexpected feature: the quantization step of the conductance is apparently system dependent. We provide the understanding of this behaviour using the appropriately extended random matrix approach. A single additional parameter governs the size of the conductance quantization steps. In effect the behaviour seems to remain `universal', generic for the conductance of a class of mesoscopic systems.
4 pages in LaTex + 4 figures in .eps submitted to Phys. Rev. B

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/27940

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9712048
 http://arxiv.org/abs/cond-mat/9712048

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arXiv