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相关论文: Critical behavior of the Anderson model on the Bet…

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Numerical approaches to Anderson localization face the problem of having to treat large localization lengths while being restricted to finite system sizes. We show that by finite-size scaling of the probability distribution of the local…

强关联电子 · 物理学 2015-05-18 Gerald Schubert , Jens Schleede , Krzysztof Byczuk , Holger Fehske , Dieter Vollhardt

In this paper we present a thorough study of transport, spectral and wave-function properties at the Anderson localization critical point in spatial dimensions $d = 3$, $4$, $5$, $6$. Our aim is to analyze the dimensional dependence and to…

无序系统与神经网络 · 物理学 2017-03-15 Elena Tarquini , Giulio Biroli , Marco Tarzia

We study the Anderson model on the Bethe lattice by working directly with propagators at real energies $E$. We introduce a novel criterion for the localization-delocalization transition based on the stability of the population of the…

无序系统与神经网络 · 物理学 2019-12-04 Giorgio Parisi , Saverio Pascazio , Francesca Pietracaprina , Valentina Ros , Antonello Scardicchio

The Localization Landscape Theory (LLT) offers a classical analogy for understanding Anderson localization through an effective confining potential, whose percolation threshold has been proposed to mark the mobility edge. While this…

无序系统与神经网络 · 物理学 2026-05-29 Lorenzo Tonetti , Leticia F. Cugliandolo , Marco Tarzia

We study Anderson localization in disordered tight-binding models on hyperbolic lattices. Such lattices are geometries intermediate between ordinary two-dimensional crystalline lattices, which localize at infinitesimal disorder, and Bethe…

无序系统与神经网络 · 物理学 2024-08-20 Anffany Chen , Joseph Maciejko , Igor Boettcher

We study numerically Anderson localization on lattices that are tree-like except for the presence of one loop of varying length $L$. The resulting expressions allow us to compute corrections to the Bethe lattice solution on i)…

无序系统与神经网络 · 物理学 2023-10-17 Matilde Baroni , Giulia Garcia Lorenzana , Tommaso Rizzo , Marco Tarzia

We study numerically the critical behavior at the localization transition in the Anderson model on infinite Bethe lattice and on random regular graphs. The focus is on the case of coordination number $m+1 = 3$, with a box distribution of…

无序系统与神经网络 · 物理学 2019-06-12 K. S. Tikhonov , A. D. Mirlin

In this paper, we investigate the Anderson model on the Bethe lattice, focusing on the localized regime. Employing the cavity approach, we derive compact expressions for the inverse participation ratios (IPRs) that are equivalent to those…

无序系统与神经网络 · 物理学 2024-06-28 Tommaso Rizzo , Marco Tarzia

The Localization Landscape Theory (LLT) provides a classical picture of Anderson localization by introducing an effective confining potential whose percolation is proposed to coincide with the mobility edge. Although this proposal shows…

无序系统与神经网络 · 物理学 2025-12-04 Lorenzo Tonetti , Leticia F. Cugliandolo , Marco Tarzia

We revisit the Anderson localization problem on Bethe lattices, putting in contact various aspects which have been previously only discussed separately. For the case of connectivity 3 we compute by the cavity method the density of states…

无序系统与神经网络 · 物理学 2015-05-18 Giulio Biroli , Guilhem Semerjian , Marco Tarzia

Large-deviations theory deals with tails of probability distributions and the rare events of random processes, for example spreading packets of particles. Mathematically, it concerns the exponential fall-of of the density of thin-tailed…

统计力学 · 物理学 2017-07-04 Erez Aghion , David A. Kessler , Eli Barkai

Anomalously localized states (ALS) at the critical point of the Anderson transition are studied for the SU(2) model belonging to the two-dimensional symplectic class. Giving a quantitative definition of ALS to clarify statistical properties…

无序系统与神经网络 · 物理学 2009-11-10 H. Obuse , K. Yakubo

Taking into account that a proper description of disordered systems should focus on distribution functions, the authors develop a powerful numerical scheme for the determination of the probability distribution of the local density of states…

无序系统与神经网络 · 物理学 2013-06-20 Gerald Schubert , Alexander Weisse , Gerhard Wellein , Holger Fehske

The Anderson transition on random graphs draws interest through its resemblance to the many-body localization (MBL) transition with similarly debated properties. In this Letter, we construct a unitary Anderson model on Small-World graphs to…

无序系统与神经网络 · 物理学 2025-02-25 Weitao Chen , Ignacio García-Mata , John Martin , Jiangbin Gong , Bertrand Georgeot , Gabriel Lemarié

We develop a novel analytical approach to the problem of single particle localization in infinite dimensional spaces such as Bethe lattice and random regular graphs. The key ingredient of the approach is the notion of the inverted order…

无序系统与神经网络 · 物理学 2018-02-14 V. E. Kravtsov , B. L. Altshuler , L. B. Ioffe

The nearest-neighbor level spacing distribution is numerically investigated by directly diagonalizing disordered Anderson Hamiltonians for systems of sizes up to 100 x 100 x 100 lattice sites. The scaling behavior of the level statistics is…

无序系统与神经网络 · 物理学 2009-10-30 Isa Kh. Zharekeshev , Bernhard Kramer

Based on a selfconsistent theory of localization we study the electron transport properties of a disordered system in the framework of the Anderson model on a Bethe lattice. In the calculation of the dc conductivity we separately discuss…

强关联电子 · 物理学 2009-11-10 A. Alvermann , F. X. Bronold , H. Fehske

We examine the localization properties of the 2D Anderson Hamiltonian with off-diagonal disorder. Investigating the behavior of the participation numbers of eigenstates as well as studying their multifractal properties, we find states in…

无序系统与神经网络 · 物理学 2009-10-30 Andrzej Eilmes , Rudolf A. Roemer , Michael Schreiber

We study the critical behavior of the Anderson localization-delocalization transition in corner-sharing tetrahedral lattices. We compare our results obtained by three different numerical methods namely the multifractal analysis, the Green…

无序系统与神经网络 · 物理学 2015-10-29 Martin Puschmann , Philipp Cain , Michael Schreiber

We analyze the unusual slow dynamics that emerges in the bad metal delocalized phase preceding the Many-Body Localization transition by using single-particle Anderson Localization on the Bethe lattice as a toy model of many-body dynamics in…

统计力学 · 物理学 2017-12-06 Giulio Biroli , Marco Tarzia
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