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We develop a systematic perturbative method to obtain analytic solution of the Generalized Dorokhov-Mello-Pereyra-Kumar (DMPK) equation in the strongly disordered regime which describes the evolution of the joint probability distribution of…

无序系统与神经网络 · 物理学 2010-07-09 Andrew Douglas Khandker Muttalib

Electronic transport properties in a disordered quantum wire are very well described by the Dorokhov-Mello-Pereyra-Kumar (DMPK) equation, which describes the evolution of the transmission eigenvalues as a function of the length of a…

介观与纳米尺度物理 · 物理学 2009-11-07 K. A. Muttalib , Victor A. Gopar

The Dorokhov-Mello-Pereyra-Kumar (DMPK) equation, which describes the distribution of transmission eigenvalues of multichannel disordered conductors, has been enormously successful in describing a variety of detailed transport properties of…

无序系统与神经网络 · 物理学 2009-10-31 K. A. Muttalib , J. R. Klauder

The Dorokhov-Mello-Pereyra-Kumar (DMPK) equation, using in the analysis of quasi-one-dimensional systems and describing evolution of diagonal elements of the many-channel transfer matrix, is derived under minimal assumptions on the…

无序系统与神经网络 · 物理学 2019-04-08 I. M. Suslov

The Generalized Dorokov-Mello-Pereyra-Kumar (DMPK) equation has recently been used to obtain a family of very broad and highly asymmetric conductance distributions for three dimensional disordered conductors. However, there are two major…

强关联电子 · 物理学 2015-06-15 Andrew Douglas , Peter Markos , K. A. Muttalib

For the transmission of electrons in a weakly disordered strip of material Dorokhov, Mello, Pereyra and Kumar (DMPK) proposed a diffusion process for the transfer matrices. The correspoding transmission eigenvalues satisfy the DMPK…

概率论 · 数学 2013-01-09 Maximilian Butz

We compute the quantum correction due to weak localization for transport properties of disordered quasi-one-dimensional conductors, by integrating the Dorokhov-Mello-Pereyra-Kumar equation for the distribution of the transmission…

凝聚态物理 · 物理学 2007-05-23 C. W. J. Beenakker

The two known non-perturbative theories of localization in disordered wires, the Fokker-Planck approach due to Dorokhov, Mello, Pereyra, and Kumar, and the field-theoretic approach due to Efetov and Larkin, are shown to be equivalent for…

凝聚态物理 · 物理学 2009-10-28 P. W. Brouwer , K. Frahm

We solve the Anderson localization problem on a two-leg ladder by the Fokker-Planck equation approach. The solution is exact in the weak disorder limit at a fixed inter-chain coupling. The study is motivated by progress in investigating the…

无序系统与神经网络 · 物理学 2012-07-19 Hong-Yi Xie , Vladimir E. Kravtsov , Markus Müller

Transport properties of disordered electron system can be characterized by the conductance, Lyapunov exponent, or level spacing. Two additional parameters, $K_{11}$ and $\gamma $ were introduced recently which measure the non-homogeneity of…

无序系统与神经网络 · 物理学 2015-03-17 P. Markos

We present a general phase-space kinetic model for charged particle transport through combined localised and delocalised states, capable of describing scattering collisions, trapping, detrapping and losses. The model is described by a…

统计力学 · 物理学 2016-09-14 Peter W. Stokes , Bronson Philippa , Daniel Cocks , Ronald D. White

We give a full description of the numerical solution of a general charge transport model for doped disordered semiconductors with arbitrary field- and density-dependent mobilities. We propose a suitable scaling scheme and generalize the…

计算物理 · 物理学 2012-12-13 S. Stodtmann , R. M. Lee , C. K. F. Weiler , A. Badinski

We study a deterministic method for particle transport in tissue in selected medical applications. Generalized Fokker-Planck (GFP) theory has been developed to improve the Fokker-Planck (FP) equation in cases where scattering is…

医学物理 · 物理学 2009-12-10 Edgar Olbrant , Martin Frank

In this paper, some theoretical aspects will be addressed for the asymptotic preserving DG-IMEX schemes recently proposed in [J. Jang, F. Li, J.-M. Qiu and T. Xiong, submitted, arxiv:1306.0227] for kinetic transport equations under a…

数值分析 · 数学 2014-06-12 Juhi Jang , Fengyan Li , Jing-Mei Qiu , Tao Xiong

A generalised phase-space kinetic Boltzmann equation for highly non-equilibrium charged particle transport via localised and delocalised states is used to develop continuity, momentum and energy balance equations, accounting explicitly for…

统计力学 · 物理学 2017-04-19 Peter W. Stokes , Bronson Philippa , Daniel Cocks , Ronald D. White

Recent numerical simulations have shown that the distribution of conductance P(g) in 3D strongly localized regiem differs significally from the expected log normal distribution. To understand the origin of this difference analytically, we…

无序系统与神经网络 · 物理学 2015-06-24 K. A. Muttalib. P. Markos , P. Woelfle

Transport of electrons through two-dimensional semiconductor structures on the nanoscale in the presence of perpendicular magnetic field depends on the interplay of geometry of the system, the leads, and the magnetic length. We use a…

介观与纳米尺度物理 · 物理学 2012-03-15 Vidar Gudmundsson , Chi-Shung Tang , Cosmin Mihai Gainar , Valeriu Moldoveanu , Andrei Manolescu

We study analytically and numerically field/intensity correlations in wave transport through volume-disordered waveguide. The obtained channel and spacial correlations deviate from those found in framework of Dorokhov-Mello-Pereyra-Kumar…

介观与纳米尺度物理 · 物理学 2007-06-12 Alexey Yamilov

Using the random matrix theory, we investigate the ensemble statistics of edge transport of a quantum spin Hall insulator with multiple edge states in the presence of quenched disorder. Dorokhov-Mello-Pereyra-Kumar equation applicable for…

介观与纳米尺度物理 · 物理学 2009-06-03 Dafang Li , Junren Shi

Our study of the evolution of transmission eigenvalues, due to changes in various physical parameters in a disordered region of arbitrary dimensions, results in a generalization of the celebrated DMPK equation. The evolution is shown to be…

介观与纳米尺度物理 · 物理学 2009-11-11 Pragya Shukla , Inder P. Batra
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