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相关论文: Possibility of the 2D Anderson Transition and Gene…

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The generalized Lyapunov exponents describe the growth of the second moments for a particular solution of the quasi-1D Schroedinger equation with initial conditions on the left end. Their possible application in the Anderson transition…

无序系统与神经网络 · 物理学 2007-05-23 I. M. Suslov

We report a numerical investigation of the Anderson transition in two-dimensional systems with spin-orbit coupling. An accurate estimate of the critical exponent $\nu$ for the divergence of the localization length in this universality class…

无序系统与神经网络 · 物理学 2009-11-07 Yoichi Asada , Keith Slevin , Tomi Ohtsuki

We investigate the possibility of an Anderson transition below two dimensions in disordered systems of non-interacting electrons with symplectic symmetry. Numerical analysis of energy level statistics and conductance statistics on…

无序系统与神经网络 · 物理学 2009-11-11 Yoichi Asada , Keith Slevin , Tomi Ohtsuki

Roughly half of numerical investigations of the Anderson transition are based on consideration of an associated quasi-1D system and postulation of one-parameter scaling for the minimal Lyapunov exponent. If this algorithm is taken…

无序系统与神经网络 · 物理学 2009-11-11 I. M. Suslov

In a recent publication, J. Phys.: Condens. Matt. 14 13777 (2002), Kuzovkov et. al. announced an analytical solution of the two-dimensional Anderson localisation problem via the calculation of a generalised Lyapunov exponent using signal…

无序系统与神经网络 · 物理学 2009-11-10 P. Markoš , L. Schweitzer , M. Weyrauch

We investigate the metal-insulator transition occurring in two-dimensional (2D) systems of noninteracting atoms in the presence of artificial spin-orbit interactions and a spatially correlated disorder generated by laser speckles. Based on…

量子气体 · 物理学 2017-05-23 Giuliano Orso

We reply to comments by P.Marko$\breve{s}$, L.Schweitzer and M.Weyrauch [preceding paper] on our recent paper [J. Phys.: Condens. Matter 63, 13777 (2002)]. We demonstrate that our quite different viewpoints stem for the different physical…

无序系统与神经网络 · 物理学 2007-05-23 V. N. Kuzovkov , V. Kashcheyevs , W. von Niessen

We report an analysis of the Anderson transition in an SU(2) model with chiral symmetry. Clear single parameter scaling behaviour is observed. We estimate the critical exponent for the divergence of the localization length to be…

无序系统与神经网络 · 物理学 2015-06-24 Yoichi Asada , Keith Slevin , Tomi Ohtsuki

The Anderson localization problem in one and two dimensions is solved analytically via the calculation of the generalized Lyapunov exponents. This is achieved by making use of signal theory. The phase diagram can be analyzed in this way. In…

凝聚态物理 · 物理学 2007-05-23 V. N. Kuzovkov , W. von Niessen , V. Kashcheyevs , O. Hein

We illuminate the fundamental mechanism responsible for the transition between the non-Hermitian skin effect and defect-induced Anderson localization in the bulk via the study of Lyapunov exponents. We obtain a proof that the change of the…

无序系统与神经网络 · 物理学 2026-03-25 Silvio Barandun

We analyze the scaling behavior of the higher Lyapunov exponents at the Anderson transition. We estimate the critical exponent and verify its universality and that of the critical conductance distribution for box, Gaussian and Lorentzian…

无序系统与神经网络 · 物理学 2009-11-07 Keith Slevin , Tomi Ohtsuki

A recently proposed statistical model for the effects of decoherence on electron transport manifests a decoherence-driven transition from quantum-coherent localized to ohmic behavior when applied to the one-dimensional Anderson model. Here…

介观与纳米尺度物理 · 物理学 2012-02-20 Matías Zilly , Orsolya Ujsághy , Marko Woelki , Dietrich E. Wolf

In this short note, we prove positivity of the Lyapunov exponent for 1D continuum Anderson models by leveraging some classical tools from inverse spectral theory. The argument is much simpler than the existing proof due to…

The method proposed by the present authors to deal analytically with the problem of Anderson localization via disorder [J.Phys.: Condens. Matter {\bf 14} (2002) 13777] is generalized for higher spatial dimensions D. In this way the…

无序系统与神经网络 · 物理学 2009-11-11 V. N. Kuzovkov , W. von Niessen

The exponent puzzle of the Anderson-Mott transition is discussed on the basis of a duality model for strongly correlated electrons.

强关联电子 · 物理学 2007-05-23 O. Narikiyo

We investigate localization of noninteracting particles with spins higher than 1/2 in a two-dimensional random potential in presence of spin-orbit coupling. We consider an integer spin ($s=1$) and a half-integer spin ($s=3/2$) belonging to…

无序系统与神经网络 · 物理学 2010-01-11 Reza Sepehrinia

The critical exponents of continuous phase transitions of a Hermitian system depend on and only on its dimensionality and symmetries. This is the celebrated notion of the universality of continuous phase transitions. Here we report the…

无序系统与神经网络 · 物理学 2023-01-24 C. Wang , X. R. Wang

In the recent submission arXiv:2403.01974, Altshuler et al suggested a new approach to the Anderson transition in high dimensions. The main idea consists in the use of the branching graphs instead of high-dimensional lattices: it does not…

无序系统与神经网络 · 物理学 2025-05-30 I. M. Suslov

Numerical studies of the Anderson transition are based on the finite-size scaling analysis of the smallest positive Lyapunov exponent. We prove numerically that the same scaling holds also for higher Lyapunov exponents. This scaling…

介观与纳米尺度物理 · 物理学 2009-10-31 P. Markos

We report a finite size scaling study of the Anderson transition. Different scaling functions and different values for the critical exponent have been found, consistent with the existence of the orthogonal and unitary universality classes…

无序系统与神经网络 · 物理学 2009-10-30 Keith Slevin , Tomi Ohtsuki
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