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We consider the empirical process G_t of a one-dimensional diffusion with finite speed measure, indexed by a collection of functions F. By the central limit theorem for diffusions, the finite-dimensional distributions of G_t converge weakly…

概率论 · 数学 2007-05-23 Aad van der Vaart , Harry van Zanten

Using a scattering matrix approach and quasiclassical Green's function technique, we calculate the conductance of the S/N system (see Fig.1). We establish that the difference between the superconducting and normal state conductance $(\delta…

超导电性 · 物理学 2019-08-17 C. J. Lambert , R. Seviour , A. F. Volkov

It was recently shown that conventional phonon-electron interactions induce triplet pairing states in time-reversal invariant 3D Dirac semi - metals provided magnetic impurities or exchange interactions are strong enough?. The order…

超导电性 · 物理学 2015-02-02 Baruch Rosenstein , Boris Ya. Shapiro , Irina Shapiro

The Kubo formula for the conductance of classically chaotic systems is analyzed semiclassically, yielding simple expressions for the mean and the variance of the quantum interference terms. In contrast to earlier work, here times longer…

凝聚态物理 · 物理学 2016-08-31 Nathan Argaman

The two-dimensional Hubbard model is studied for small values of the interaction strength (U of the order of the hopping amplitude t), using a variational ansatz well suited for this regime. The wave function, a refined Gutzwiller ansatz,…

超导电性 · 物理学 2019-07-19 Dionys Baeriswyl

Using a linear analysis, we study the stability of giant-vortex states in very thin disks. The vortex expulsion and penetration fields are obtained for finite thickness disks from a numerical solution of the non-linear Ginzburg-Landau (GL)…

介观与纳米尺度物理 · 物理学 2016-08-31 V. A. Schweigert , F. M. Peeters

Driving superconductors out of equilibrium is a promising avenue to study their equilibrium properties as well as to control the superconducting state. Non-equilibrium superconductors are often studied using time resolved optical…

超导电性 · 物理学 2019-11-27 A. Kumar , A. F. Kemper

The planar-diagrammatic technique of large-$N$ random matrices is extended to evaluate averages over the circular ensemble of unitary matrices. It is then applied to study transport through a disordered metallic ``grain'', attached through…

凝聚态物理 · 物理学 2009-10-28 N. Argaman , A. Zee

We consider scanning gate conductance microscopy of an open quantum dot that is connected to the conducting channel using the wave function description of the quantum transport and a finite difference approach. We discuss the information…

介观与纳米尺度物理 · 物理学 2014-05-26 K. Kolasiński , B. Szafran

Local diffusion coefficients in disordered systems such as spin glass systems and living cells are highly heterogeneous and may change over time. Such a time-dependent and spatially heterogeneous environment results in irreproducibility of…

统计力学 · 物理学 2016-12-21 Takuma Akimoto , Eiji Yamamoto

Using recent mathematical advances, a geometric approach to rare noise-driven transition events in nonequilibrium systems is given, and an algorithm for computing the maximum likelihood transition curve is generalized to the case of…

概率论 · 数学 2010-10-19 Matthias Heymann , Stephen W. Teitsworth , Jonathan C. Mattingly

We present a nonperturbative approach which allows to evaluate the weak localization correction to the conductivity of disordered conductors in the presence of interactions. The effect of the electron-electron interaction on the…

介观与纳米尺度物理 · 物理学 2009-10-31 A. D. Zaikin , D. S. Golubev

The onset of macroscopic phase coherence in superconducting cuprates is considered to be determined by random percolation between mesoscopic Jahn-Teller pairs, stripes or clusters. The model is found to predict the onset of…

超导电性 · 物理学 2009-11-07 D. Mihailovic , V. V. Kabanov , K. A. Muller

We develop a time dependent random matrix theory describing the influence of a time-dependent perturbation on mesoscopic conductance fluctuations in open quantum dots. The effect of external field is taken into account to all orders of…

介观与纳米尺度物理 · 物理学 2009-11-07 Maxim G. Vavilov , Igor L. Aleiner

We numerically study the distribution function of the conductance (transmission) in the one-dimensional tight-binding Anderson and periodic-on-average superlattice models in the region of fluctuation states where single parameter scaling is…

无序系统与神经网络 · 物理学 2009-11-10 L. I. Deych , M. V. Erementchouk , A. A. Lisyansky , Alexey Yamilov , Hui Cao

A non-equilibrium theory of optical conductivity of dirty-limit superconductors and commensurate charge density wave is presented. We discuss the current response to different experimentally relevant light-field probe pulses and show that a…

超导电性 · 物理学 2017-08-08 Dante M. Kennes , Eli Y. Wilner , David R. Reichman , Andrew J. Millis

We develop a quasi-classical theory for the superconducting proximity effect in a ballistic ferromagnetic layer in contact with a d-wave superconductor. In agreement with recent experiments we find that the density of states oscillate…

超导电性 · 物理学 2009-11-10 Zahra Faraii , Malek Zareyan

We have obtained the universal conductance distribution of two-dimensional disordered systems in the strongly localized limit. This distribution is directly related to the Tracy-Widom distribution, which has recently appeared in many…

介观与纳米尺度物理 · 物理学 2009-06-24 J. Prior , A. M. Somoza , M. Ortuno

We study the thermal conductivity in disordered $s$-wave superconductors. Expanding on previous works for normal metals, we develop a formalism that tackles particle diffusion as well as the weak localization (WL) and weak anti-localization…

介观与纳米尺度物理 · 物理学 2020-05-12 Lucia Gonzalez Rosado , Fabian Hassler , Gianluigi Catelani

Asymptotic behavior of distribution functions of local quantities in disordered conductors is studied in the weak disorder limit by means of an optimal fluctuation method. It is argued that this method is more appropriate for the study of…

凝聚态物理 · 物理学 2009-10-28 Igor E. Smolyarenko , Boris L. Altshuler