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相关论文: Entropic analysis of the localization-delocalizati…

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We study the nature of collective excitations in harmonic chains with masses exhibiting long-range correlated disorder with power spectrum proportional to $1/k^{\alpha}$, where $k$ is the wave-vector of the modulations on the random masses…

无序系统与神经网络 · 物理学 2009-11-07 F. A. B. F. de Moura , M. D. Coutinho-Filho , E. P. Raposo , M. L. Lyra

The intensity distribution of electromagnetic polar waves in a chain of near-resonant weakly-coupled scatterers is investigated theoretically and supported by a numerical analysis. Critical scaling behavior is discovered for part of the…

介观与纳米尺度物理 · 物理学 2013-05-29 Sanli Faez , Ad Lagendijk , Alexander Ossipov

We study the one-dimensional quantum Heisenberg ferromagnet with exchange couplings exhibiting long-range correlated disorder with power spectrum proportional to $1/k^{\alpha}$, where $k$ is the wave-vector of the modulations on the random…

统计力学 · 物理学 2009-11-07 F. A. B. F. de Moura , M. D. Coutinho-Filho , E. P. Raposo , M. L. Lyra

I investigate entanglement entropy of one dimension (1D) cluster states to discuss the delocalization of clusters in linear-chain $3\alpha$- and $4\alpha$-cluster states. In analysis of entanglement entropy of 1D…

核理论 · 物理学 2015-06-23 Yoshiko Kanada-En'yo

We study the delocalisation transition which takes places in one-dimensional disordered systems when the random potential exhibits specific long-range correlations. We consider the case of weak disorder; using a systematic perturbative…

无序系统与神经网络 · 物理学 2007-05-23 L. Tessieri

We present a theory of Anderson localization on a one-dimensional lattice with translation-invariant hopping. We find by analytical calculation, the localization length for arbitrary finite-range hopping in the single propagating channel…

无序系统与神经网络 · 物理学 2021-09-01 Reza Sepehrinia

We study Anderson localization in a one-dimensional disordered system with long-range correlated hopping decaying as $1/r^{a}$ with complex hopping amplitudes that break time-reversal symmetry in a tunable fashion by varying their argument.…

无序系统与神经网络 · 物理学 2026-04-03 Bikram Pain , Sthitadhi Roy , Jens H. Bardarson , Ivan M. Khaymovich

In the present work, we investigated the correlation-induced localization-delocalization transition in the one-dimensional tight-binding model with fractal disorder. We obtained a phase transition diagram from localized to extended states…

无序系统与神经网络 · 物理学 2015-08-26 Hiroaki S. Yamada

Localization-delocalization transition in a discrete Anderson nonlinear Schr\"odinger equation with disorder is shown to be a critical phenomenon $-$ similar to a percolation transition on a disordered lattice, with the nonlinearity…

无序系统与神经网络 · 物理学 2012-03-20 A. V. Milovanov , A. Iomin

We study numerically the disorder-induced localization-delocalization phase transitions that occur for mass and spring constant disorder in a three-dimensional cubic lattice with harmonic couplings. We show that, while the phase diagrams…

无序系统与神经网络 · 物理学 2012-10-02 Sebastian D. Pinski , Walter Schirmacher , Terry Whall , Rudolf A. Römer

The localization lengths of long-range correlated disordered chains are studied for electronic wavefunctions in the Anderson model and for vibrational states. A scaling theory close to the band edge is developed in the Anderson model and…

无序系统与神经网络 · 物理学 2009-11-07 Stefanie Russ

This paper presents an analytical approach of the propagation of an acoustic wave through a normally distributed disordered lattice made up of Helmholtz resonators connected to a cylindrical duct. This approach allows to determine…

经典物理 · 物理学 2009-02-06 Olivier Richoux , E. Morand , L. Simon

We investigate the localization behavior of electrons in a random lattice which is constructed from a quasi-one-dimensional chain with large coordinate number $Z$ and rewired bonds, resembling the small-world network proposed recently but…

无序系统与神经网络 · 物理学 2009-10-31 Chen-Ping Zhu , Shi-Jie Xiong

We study one-magnon excitations in a random ferromagnetic Heisenberg chain with long-range correlations in the coupling constant distribution. By employing an exact diagonalization procedure, we compute the localization length of all…

无序系统与神经网络 · 物理学 2009-11-07 Rodrigo P. A. Lima , Marcelo L. Lyra , Elton M. Nascimento , Antonio D. de Jesus

We study numerically the effects of short- and long-range correlations on the localization properties of the eigenstates in a one-dimensional disordered lattice characterized by a random non-Hermitian Hamiltonian, where the imaginary part…

无序系统与神经网络 · 物理学 2020-06-05 Ba Phi Nguyen , Thi Kim Thoa Lieu , Kihong Kim

We consider the spatiotemporal evolution of a wave packet in disordered nonlinear Schr\"odinger and anharmonic oscillator chains. In the absence of nonlinearity all eigenstates are spatially localized with an upper bound on the localization…

无序系统与神经网络 · 物理学 2015-05-13 Ch. Skokos , D. O. Krimer , S. Komineas , S. Flach

We study the creation and distribution of entanglement in disordered $XY$-type spin-$1/2$ chains for the paradigmatic case of a single flipped spin prepared on a fully polarized background. The local magnetic field is set to follow a…

We introduce the cut averaged entanglement entropy in disordered periodic spin chains and prove it to be a concave function of subsystem size for individual eigenstates. This allows us to identify the entanglement scaling as a function of…

强关联电子 · 物理学 2016-11-21 Xiongjie Yu , David J. Luitz , Bryan K. Clark

We present a perturbative approach to disordered systems in one spatial dimension that accesses the full range of phase disorder and clarifies the connection between localization and phase information. We consider a long chain of…

无序系统与神经网络 · 物理学 2024-03-04 Adrian B. Culver , Pratik Sathe , Rahul Roy

Electron localization property of a random chain changing under the influence of a constant electric field has been studied. We have adopted the multifractal scaling formalism to explore the possible localization behavior in the system. We…

无序系统与神经网络 · 物理学 2009-10-31 Parthapratim Biswas , Prabhat K Thakur
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