These proceedings focus on aspects of disorder where quantum interferences are present. Such interferences occur on a mesoscopic scale, intermediate between the microscopic (eg. atomic physics) and macroscopic scales (eg. traditional condensed matter physics). Before the emergence of mesoscopic quantum physics, the manifestations of these quantum interferences (weak localization in disordered metals, Anderson localization of hopping conductivity in insulators) were mainly studies from the point of view of the theory of critical phenomena (scaling theory of localization, renormalization of perturbative expansions, calculation of critical exponents). Anderson localization was then part of a more general field including two other problems where disorder and critical phenomena were relevant: percolation and frustration (spin glasses). The field of mesoscopic quantum physics has emerged over recent years from a range of new experiments such as universal conductance fluctuations (magneto-fingerprints), the effect of a Aharonov-Bohm flux on the conductance and the thermodynamic properties of mesoscopic rings and the quantized conductance of ballistic point contacts. The discoveries of the integer and fractional quantum Hall effects and the high-Tc superconductors have renewed the interest for strongly correlated electron systems. All these recent developments in the field are covered in depth in this book which is organized with particular attention paid to pedagogy. It therefore includes both a description of the physical phenomena and a review of the methods, moving from an elementary level to the most recent techniques.

Table of Contents:
Universalities - from Anderson localization to quantum chaos, B.L. Altshuler and B.D. Simons; experimental signatures of phase coherent transport, H. Bouchiat; recent experiments on multiple scattering and localization of light, G. Maret; Anderson insulators, Y. Imry; seminars - localization in disordered systems, A. Shalgi and Y. Imry, interferences in disordered mesoscopic insulators, F. Ladieu and M. Sanquer, quasicrystals - metal-insulator transition in highly ordered metallic phase, C. Berger, quantum transport in semiconductor-superconductor microjunctions, C.W.J. Beenakker, transport theory of mesoscopic systems - application to ballistic transport, A.D. Stone, semiclassical quantization of chaotic billiards - a scattering approach, U. Smilansky, theory of random matrices - spectral statistics and scattering problems, P.A. Mello, basic features of Efetov's supersymmetry approach, Y.V. Fyodorov, Fermi liquids and non-Fermi liquids, H.J. Schulz, single electron phenomena in metallic nanostructures, M. Devoret et al, introduction to the physics of the quantum Hall regime, A.H. MacDonald, quantum transport in the integer and fractional quantum Hall effect regime, D.C. Glattli and C. Pasquier; ideal anyons, S. Ouvry, adiabatic quantum transport, J.E. Avron.