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32 papers · 1 filter
Mesoscopic Josephson Effect
Hermann Grabert, Gert-Ludwig Ingold
In the classical Josephson effect the phase difference across the junction is well defined, and the supercurrent is reduced only weakly by phase diffusion. For mesoscopic junctions…
Noise Dressing of Financial Correlation Matrices
Laurent Laloux, Pierre Cizeau, Jean-Philippe Bouchaud +1
We show that results from the theory of random matrices are potentially of great interest to understand the statistical structure of the empirical correlation matrices appearing in…
Comment on ``Roughening Transition of Interfaces in Disordered Media''
Anusha Hazareesing, Jean-Philippe Bouchaud
Emig and Nattermann (Phys. Rev. Lett. 81, 1469 (1998)) have recently investigated the competition between lattice pinning and impurity pinning using a Renormalisation Group (RG) ap…
Evidence for saturation of channel transmission from conductance fluctuations in atomic-size point contacts
B. Ludoph, M. H. Devoret, D. Esteve +2
The conductance of atomic size contacts has a small, random, voltage dependent component analogous to conductance fluctuations observed in diffusive wires (UCF). A new effect is ob…
Comment on ``Nonuniversal Exponents in Interface Growth''
Hugues Chaté, Qing-Hu Chen, Lei-Han Tang
Recently, Newman and Swift[T. J. Newman and M. R. Swift, Phys. Rev. Lett. {\bf 79}, 2261 (1997)] made an interesting suggestion that the strong-coupling exponents of the Kardar-Par…
Statistical and dynamical properties of the discrete Sinai model at finite times
Jerome Chave, Emmanuel Guitter
We study the Sinai model for the diffusion of a particle in a one dimensional quenched random energy landscape. We consider the particular case of discrete energy landscapes made o…