A decimation method for studying transport properties of disordered systems

Leadbeater, M and Lambert, C J (1998) A decimation method for studying transport properties of disordered systems. Annalen der Physik, 7 (5-6). pp. 498-502. ISSN 0003-3804

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We present a numerical decimation method for the study of transport properties of disordered tight-binding systems. We demonstrate this method by considering two situations: 1) the problem of two interacting particles (TIP) in a quasi-one dimensional random potential and 2) the conductance of disordered normal - superconducting structures. For case 1) we compute the two particle localisation length lambda(2) presenting results for its dependence on disorder, interaction strength and system width. For case 2) we illustrate the method by presenting results for the sub-gap conductance of a normal wire connected to one normal and one superconducting reservoir and the case of a normal region in contact with two superconductors.

Item Type:
Journal Article
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Annalen der Physik
Uncontrolled Keywords:
?? interactionlocalization simulation superconductivity mesoscopicphysicsgeneral physics and astronomyphysics and astronomy(all)qc physics ??
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03 Sep 2012 13:50
Last Modified:
16 Jul 2024 09:11