Abstract
Although this volume mainly concerns nanoscopic systems, this article is devoted to an intermediate range, between the nanoscopic and macroscopic scales, the so-called mesoscopic regime [1]. In this regime, the system to be considered may be large compared to the mean free path of the electrons. Disorder plays then a very important role and, in the so-called diffusive regime, the interplay between disorder and quantum interference effects is crucial. This is the main subject of this review article. Here, electronic interactions will be treated as a perturbation, in contrast with the topics discussed in the other chapters where the electronic correlations may play the most important role. I will try to present some personal points of view in order to describe these well-known signatures of phase coherence like weak localization or universal conductance uctuations. The goal here is to avoid technicalities as most as possible. The last part concerns the effect of electron-electron interactions.
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References
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Montambaux, G. (2007). Coherence and Interactions in Diffusive Systems. In: Karmakar, S.N., Maiti, S.K., Chowdhury, J. (eds) Physics of Zero- and One-Dimensional Nanoscopic Systems. Springer Series in Solid-State Sciences, vol 156. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72632-6_7
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