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The Anderson transition in three dimensions in a randomly varying magnetic flux is investigated in detail by means of the transfer matrix method with high accuracy. Both, systems with and without an additional random scalar potential are…

Disordered Systems and Neural Networks · Physics 2009-10-31 T. Kawarabayashi , B. Kramer , T. Ohtsuki

The Anderson transitions in a random magnetic field in three dimensions are investigated numerically. The critical behavior near the transition point is analyzed in detail by means of the transfer matrix method with high accuracy for…

Disordered Systems and Neural Networks · Physics 2017-09-27 T. Kawarabayashi , B. Kramer , T. Ohtsuki

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…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 P. Markos

Disordered non-interacting systems are classified into ten symmetry classes, with the unitary class being the most fundamental. The three and four dimensional unitary universality classes are attracting renewed interest because of their…

Disordered Systems and Neural Networks · Physics 2016-09-27 Keith Slevin , Tomi Ohtsuki

We report a numerical analysis of corrections to finite size scaling at the Anderson transition due to irrelevant scaling variables and non-linearities of the scaling variables. By taking proper account of these corrections, the…

Disordered Systems and Neural Networks · Physics 2009-10-31 Keith Slevin , Tomi Ohtsuki

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…

Disordered Systems and Neural Networks · Physics 2023-01-24 C. Wang , X. R. Wang

The Anderson transition in a 3D system with symplectic symmetry is investigated numerically. From a one-parameter scaling analysis the critical exponent $\nu$ of the localization length is extracted and estimated to be $\nu = 1.3 \pm 0.2$.…

Condensed Matter · Physics 2009-10-28 T. Kawarabayashi , T. Ohtsuki , K. Slevin , Y. Ono

In this paper we analyze the predictions of the forward approximation in some models which exhibit an Anderson (single-) or many-body localized phase. This approximation, which consists in summing over the amplitudes of only the shortest…

Disordered Systems and Neural Networks · Physics 2016-02-10 Francesca Pietracaprina , Valentina Ros , Antonello Scardicchio

A review of recent progress in numerical studies of the Anderson transition in three dimensional systems is presented. From high precision calculations the critical exponent $\nu$ for the divergence of the localization length is estimated…

Mesoscale and Nanoscale Physics · Physics 2017-09-27 Tomi Ohtsuki , Keith Slevin , Tohru Kawarabayashi

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…

Disordered Systems and Neural Networks · Physics 2009-10-30 Keith Slevin , Tomi Ohtsuki

A model in which a three-dimensional elastic medium is represented by a network of identical masses connected by springs of random strengths and allowed to vibrate only along a selected axis of the reference frame, exhibits an Anderson…

Disordered Systems and Neural Networks · Physics 2017-12-04 Y. M. Beltukov , S. E. Skipetrov

We propose a generalization of multifractal analysis that is applicable to the critical regime of the Anderson localization-delocalization transition. The approach reveals that the behavior of the probability distribution of wavefunction…

Disordered Systems and Neural Networks · Physics 2010-08-02 Alberto Rodriguez , Louella J. Vasquez , Keith Slevin , Rudolf A. Römer

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…

Disordered Systems and Neural Networks · Physics 2009-11-07 Yoichi Asada , Keith Slevin , Tomi Ohtsuki

We study the three-dimensional Anderson model of localization with anisotropic hopping, i.e., weakly coupled chains and weakly coupled planes. In our extensive numerical study we identify and characterize the metal-insulator transition by…

Disordered Systems and Neural Networks · Physics 2007-05-23 F. Milde , R. A. Roemer , M. Schreiber

We numerically investigate the Anderson transition in an effective dimension $d$ ($3 \leq d \leq 11$) for one particle propagation in a model random and quasiperiodic potential. The found critical exponents are different from the standard…

Condensed Matter · Physics 2016-08-31 F. Borgonovi , D. L. Shepelyansky

Using a cold atomic gas exposed to laser pulses -- a realization of the chaotic quasiperiodic kicked rotor with three incommensurate frequencies -- we study experimentally and theoretically the Anderson metal-insulator transition in three…

We report improved numerical estimates of the critical exponent of the Anderson transition in Anderson's model of localization in $d=4$ and $d=5$ dimensions. We also report a new Borel-Pad\'e analysis of existing $\epsilon$ expansion…

Disordered Systems and Neural Networks · Physics 2014-07-29 Yoshiki Ueoka , Keith Slevin

The possibility of driving an Anderson metal-insulator transition in the presence of scale-free disorder by changing the correlation exponent is numerically investigated. We calculate the localization length for quasi-one-dimensional…

Disordered Systems and Neural Networks · Physics 2012-06-05 Alexander Croy , Michael Schreiber

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…

Disordered Systems and Neural Networks · Physics 2009-11-07 Keith Slevin , Tomi Ohtsuki

We study the three-dimensional Anderson model of localization with anisotropic hopping, i.e., weakly coupled chains and weakly coupled planes. In our extensive numerical study we identify and characterize the metal-insulator transition by…

Disordered Systems and Neural Networks · Physics 2016-08-15 Frank Milde , Rudolf A. Römer , Michael Schreiber , Ville Uski
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