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If disorder-induced Anderson localized states have been observed experimentally in optics, their study remains challenging leaving a number of open questions unsolved. Among them, the impact on Anderson localization of non-Hermiticity,…

光学 · 物理学 2022-01-25 Bhupesh Kumar , Patrick Sebbah

We provide an analytic theory of Anderson localization on a lattice with a weak short-range correlated disordered potential. Contrary to the general belief we demonstrate that even next-neighbor statistical correlations in the potential can…

无序系统与神经网络 · 物理学 2009-11-11 M. Titov , H. Schomerus

We study a driven, spin-orbit coupled fermionic system in a lattice at the resonant regime where the drive frequency equals the Hubbard repulsion, for which non-trivial constrained dynamics emerge at fast timescales. An effective…

We study the quantum localization phenomena for a random matrix model belonging to the Gaussian orthogonal ensemble (GOE). An oscillating external field is applied on the system. After the transient time evolution, energy is saturated to…

混沌动力学 · 物理学 2009-11-07 Manabu Machida , Keiji Saito , Seiji Miyashita

In one-dimensional Hermitian tight-binding models, mobility edges separating extended and localized states can appear in the presence of properly engineered quasi-periodical potentials and coupling constants. On the other hand, mobility…

无序系统与神经网络 · 物理学 2022-07-27 Cem Yuce , Hamidreza Ramezani

We demonstrate that local density of states fluctuations in disordered Anderson lattice models universally lead to the emergence of non-Fermi liquid (NFL) behavior. The NFL regime appears at moderate disorder (W = W_c) and is characterized…

强关联电子 · 物理学 2007-05-23 E. Miranda , V. Dobrosavljevic

Changes in the wavefunction's phase during propagation in a random Hermitian lattice, a process known as dephasing, results in diffusion rather than Anderson localization. However, when non-Hermiticity is introduced, the wave behavior…

无序系统与神经网络 · 物理学 2025-04-29 Emmanouil T. Kokkinakis , Konstantinos G. Makris , Eleftherios N. Economou

Anderson localization is a general phenomenon that applies to a variety of disordered physical systems. Recently, a novel manifestation of Anderson localization for wave packets launched with a finite average velocity was proposed, the…

无序系统与神经网络 · 物理学 2022-11-08 Flavio Noronha , José A. S. Lourenço , Tommaso Macrì

We study coherent dynamics of tight-binding systems interacting with static and oscillating external fields. We consider Bloch oscillations and Wannier-Stark localization caused by dc fields, and compare these effects to dynamic…

凝聚态物理 · 物理学 2015-06-25 Martin Holthaus , Daniel W. Hone

We study the scenario of quenching an interaction-free Fermi sea on a one-dimensional lattice ring by suddenly changing the potential of a site. From the point-of-view of the conventional Friedel oscillation, which is a static or…

量子气体 · 物理学 2018-05-29 J. M. Zhang , Y. Liu

We study post-quench dynamics of charge-density-wave (CDW) order in the square-lattice $t$-$V$ model. The ground state of this system at half-filling is characterized by a checkerboard modulation of particle density. A generalized…

统计力学 · 物理学 2024-06-18 Lingyu Yang , Yang Yang , Gia-Wei Chern

The localization of one-electron states in the large (but finite) disorder limit is investigated. The inverse participation number shows a non--monotonic behavior as a function of energy owing to anomalous behavior of few-site localization.…

无序系统与神经网络 · 物理学 2012-10-02 L. Ujfalusi , I. Varga

We study one-dimensional lattices of interacting spins-1/2 and show that the effects of quenching the amplitude of a local magnetic field applied to a single site of the lattice can be comparable to the effects of a global perturbation…

统计力学 · 物理学 2015-06-18 E. J. Torres-Herrera , Lea F. Santos

Several systems display an equilibrium condensation transition, where a finite fraction of a conserved quantity is spatially localized. The presence of two conservation laws may induce the emergence of such transition in an…

统计力学 · 物理学 2024-09-27 Michele Giusfredi , Stefano Iubini , Paolo Politi

We investigate the effects of disorder and lattice geometry against localisation phenomena in a weakly interacting ultracold bosonic gas confined in a 2D optical lattice. The behaviour of the quantum fluid is studied at the mean-field level…

量子气体 · 物理学 2019-09-12 Luis A. Gonzalez-Garcia , Santiago F. Caballero-Benitez , Rosario Paredes

Disorder in moire superlattices simultaneously degrades flat-band localization and induces Anderson localization, yet how these two regimes interact has remained unclear. Here, we introduce a combined framework linking localization-length…

无序系统与神经网络 · 物理学 2026-04-23 Qian Liu , Xiaoshuang Xia , Junjie Wang , Peilong Hong , Lei Xu , Lujun Huang , Daohong Song , Yi Liang

The Anderson localization transition is one of the most well studied examples of a zero temperature quantum phase transition. On the other hand, many open questions remain about the phenomenology of disordered systems driven far out of…

统计力学 · 物理学 2019-09-11 Michael J. Gullans , David A. Huse

Anderson localization is a quantum phenomenon in which disorder localizes electronic wavefunctions. In this work, we propose a new approach to study Anderson localization based on the density matrix formalism. Drawing an analogy to the…

无序系统与神经网络 · 物理学 2026-03-31 Ziyue Qi , Yi Zhang , Mingpu Qin , Hongming Weng , Kun Jiang

When Anderson localization takes place in a quenched disordered system, a continuous symmetry can be broken spontaneously without accompanying Goldstone bosons. Elaborating on this observation we propose a unified, microscopic physical…

高能物理 - 格点 · 物理学 2009-11-10 Maarten Golterman , Yigal Shamir

We find that Anderson localization ceases to exist when a random medium begins to move, but another type of fundamental quantum effect, Planckian diffusion $D = \alpha\hbar/m$, rises to replace it, with $\alpha $ of order of unity.…

量子物理 · 物理学 2024-12-02 Yubo Zhang , Anton M. Graf , Alhun Aydin , Joonas Keski-Rahkonen , Eric J. Heller