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In one dimension, any disorder is traditionally believed to localize all states. We show that this paradigm breaks down under hyperuniform disorder, which suppresses long-wavelength fluctuations and interpolates between random and periodic…

无序系统与神经网络 · 物理学 2025-09-30 Junmo Jeon , Harukuni Ikeda , Shiro Sakai

Quasiperiodic systems serve as fertile ground for studying localisation, due to their propensity already in one dimension to exhibit rich phase diagrams with mobility edges. The deterministic and strongly-correlated nature of the…

无序系统与神经网络 · 物理学 2021-08-11 Alexander Duthie , Sthitadhi Roy , David E. Logan

In this paper, we embark on a captivating exploration of the stabilization of locally transmitted problems within the realm of two interconnected wave systems. To begin, we wield the formidable Arendt-Batty criteria\cite{AW} to affirm the…

偏微分方程分析 · 数学 2023-10-13 Wafa Ahmedi , Akram Ben Aissa

We study ground state and finite temperature properties of disordered heavy fermion metals by using a generalization of dynamical mean field theory which incorporates Anderson localization effects. The emergence of a non-Fermi liquid…

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

Disorder-induced effects on plasmon coupling in chains of metallic nanoparticles are studied within a dipole model, by considering two types of disorder: fluctuations of the particles' shapes and fluctuations of their positions. Typical…

光学 · 物理学 2015-05-27 Felix Rüting

We analyze a one-dimensional XXZ spin chain in a disordered magnetic field. As the main probes of the system's behavior we use the sensitivity of eigenstates to adiabatic transformations, as expressed through the fidelity susceptibility, in…

量子物理 · 物理学 2021-11-09 Dries Sels , Anatoli Polkovnikov

We study Anderson localization and propagation of partially-spatially incoherent wavepackets in linear disordered potentials, motivated by the insight that interference phenomena resulting from multiple scattering are affected by the…

光学 · 物理学 2015-05-27 D. Čapeta , J. Radić , A. Szameit , M. Segev , H. Buljan

The non-equilibrium stationary coherences that form in donor-acceptor systems are investigated to determine their relationship to the efficiency of energy transfer to a neighboring reaction center. It is found that the effects of asymmetry…

化学物理 · 物理学 2020-07-03 Kenneth A. Jung , Paul Brumer

Localization of wavefunctions is arguably the most familiar effect of disorder in quantum systems. It has been recently argued [[V. Khemani, R. Nandkishore, and S. L. Sondhi, Nature Physics, 11, 560 (2015)] that, contrary to naive…

无序系统与神经网络 · 物理学 2020-04-15 Z. Ovadyahu

We investigate the effect of spatial symmetries on phase coherent electronic transport through chaotic quantum dots. For systems which have a spatial symmetry that interchanges the source and drain leads, we find in the framework of random…

介观与纳米尺度物理 · 物理学 2007-05-23 Victor A. Gopar , Stefan Rotter , Henning Schomerus

Effective medium theory of transport in disordered systems, whose basis is the replacement of spatial disorder by temporal memory, is extended in several practical directions. Restricting attention to a 1-dimensional system with bond…

统计力学 · 物理学 2009-11-13 V. M. Kenkre , Z. Kalay , P. E. Parris

We investigate the spectral properties of a class of hard-wall bounded systems, described by potentials exhibiting domain-wise different local symmetries. Tuning the distance of the domains with locally symmetric potential from the hard…

其他凝聚态物理 · 物理学 2019-01-23 I. Kiorpelidis , F. K. Diakonos , G. Theocharis , V. Pagneux , O. Richoux , P. Schmelcher , P. A. Kalozoumis

We introduce the concept of parity symmetry in restricted spatial domains -- local parity -- and explore its impact on the stationary transport properties of generic, one-dimensional aperiodic potentials of compact support. It is shown…

量子物理 · 物理学 2013-03-25 P. A. Kalozoumis , C. Morfonios , F. K. Diakonos , P. Schmelcher

We study the effect of the competition between disorder and stress enhancement in fracture processes using the local load sharing fiber bundle model, a model that hovers on the border between analytical tractability and numerical…

无序系统与神经网络 · 物理学 2020-10-28 Santanu Sinha , Subhadeep Roy , Alex Hansen

Systems with quasiperiodic disorder are known to exhibit localization transition in low dimension. After a critical strength of disorder all the states of the system become localized, thereby ceasing the particle motion in the system.…

量子气体 · 物理学 2021-03-17 Shilpi Roy , Tapan Mishra , B. Tanatar , Saurabh Basu

We expose an interesting connection between the distribution of local spectral density of states arising in the theory of disordered systems and the notion of superstatistics introduced by Beck and Cohen and recently incorporated in random…

统计力学 · 物理学 2007-06-13 A. Y. Abul-Magd

Disorder plays a crucial role in many systems particularly in solid state physics. However, the disorder in a particular system can usually not be chosen or controlled. We show that the unique control available for ultracold atomic gases…

无序系统与神经网络 · 物理学 2009-11-11 T. Schulte , S. Drenkelforth , J. Kruse , R. Tiemeyer , K. Sacha , J. Zakrzewski , M. Lewenstein , W. Ertmer , J. J. Arlt

Transmission of the scalar field through the random medium, represented by the system of randomly distributed dielectric cylinders is calculated numerically. System is mapped to the problem of electronic transport in disordered…

介观与纳米尺度物理 · 物理学 2016-08-31 P. Markos , C. M. Soukoulis

The spurious interaction of quantum systems with their environment known as decoherence leads, as a function of time, to a decay of coherence of superposition states. Since the interactions between system and environment are local, they can…

量子物理 · 物理学 2015-03-19 Gonzalo A. Alvarez , Dieter Suter

The reflection and transmission amplitudes of waves in disordered multimode waveguides are studied by means of numerical simulations based on the invariant embedding equations. In particular, we analyze the influence of surface-type…

无序系统与神经网络 · 物理学 2009-10-31 J. A. Sanchez-Gil , V. Freilikher , A. A. Maradudin , I. Yurkevich