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We study a quasiperiodic Aubry Andre lattice arranged along a spiral curve. In this setup, the changing angle of the spiral naturally stretches and compresses the distances between neighboring sites, which in turn modulates the hopping…

量子气体 · 物理学 2026-01-21 Hemant Kumar Sharma

Conduction through materials crucially depends on how ordered they are. Periodically ordered systems exhibit extended Bloch waves that generate metallic bands, whereas disorder is known to limit conduction and localize the motion of…

无序系统与神经网络 · 物理学 2020-08-26 V. Goblot , A. Štrkalj , N. Pernet , J. L. Lado , C. Dorow , A. Lemaître , L. Le Gratiet , A. Harouri , I. Sagnes , S. Ravets , A. Amo , J. Bloch , O. Zilberberg

We study the effects of quasiperiodicity on the stability of conventional and unconventional superconductors. Quasiperiodicity is modelled using the three-dimensional Aubry-Andre model, a system in which electrons are coupled to a…

强关联电子 · 物理学 2024-10-16 Nicole Sabina Ticea , Julian May-Mann , Jiewen Xiao , Erez Berg , Trithep Devakul

Compared to periodic systems, quasicrystals without translational invariance exhibit unexpected localization properties. The extended-localized transition in quasicrystals has been observed in both quantum and classical wave systems.…

应用物理 · 物理学 2024-06-18 Zhoufei Liu , Pei-Chao Cao , Ying Li , Jiping Huang

The localization of waves in non-periodic media is a universal phenomenon, occurring in a variety of different quantum and classical systems, including condensed-matter, Bose-Einstein condensates in optical lattices, quantum chaotic…

无序系统与神经网络 · 物理学 2010-12-09 Y. Lahini , R. Pugatch , F. Pozzi , M. Sorel , R. Morandotti , N. Davidson , Y. Silberberg

We show that the tails of the asymptotic density distribution of a quantum wave packet that localizes in the the presence of random or quasiperiodic disorder can be described by the diagonal term of the projection over the eingenstates of…

量子气体 · 物理学 2014-01-28 Marco Moratti , Michele Modugno

We study the localization transitions for coupled one-dimensional lattices with quasiperiodic potential. Besides the localized and extended phases there is an intermediate mixed phase which can be easily explained decoupling the system so…

无序系统与神经网络 · 物理学 2019-05-21 M. Rossignolo , L. Dell'Anna

We report on a direct connection between quasi-periodic topology and the Almost Mathieu (Andre-Aubry) metal insulator transition (MIT). By constructing quasi-periodic transfer matrix equations from the limit of rational approximate…

介观与纳米尺度物理 · 物理学 2023-02-16 Dan S. Borgnia , Robert-Jan Slager

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

We study the combined effect of quasiperiodic disorder, driven and interaction in the periodically kicked Aubry-Andr\'{e} model. In the non-interacting limit, by analyzing the quasienergy spectrum statistics, we verify the existence of a…

无序系统与神经网络 · 物理学 2022-08-26 Yu Zhang , Bozhen Zhou , Haiping Hu , Shu Chen

We investigate localization properties in a two-coupled uniform chains with quasiperiodic modulation on interchain coupling strength. We demonstrate that this ladder is equivalent to a Aubry-Andre (AA) chain when two legs are symmetric.…

无序系统与神经网络 · 物理学 2021-06-24 R. Wang , X. M. Yang , Z. Song

The robustness of topological properties, such as quantized currents, generally depends on the existence of gaps surrounding the relevant energy levels or on symmetry-forbidden transitions. Here, we observe quantized currents that survive…

介观与纳米尺度物理 · 物理学 2025-08-21 Emmanuel Gottlob , Dan S. Borgnia , Robert-Jan Slager , Ulrich Schneider

We introduce a two-dimensional generalisation of the quasiperiodic Aubry-Andr\'e model. Even though this model exhibits the same duality relation as the one-dimensional version, its localisation properties are found to be substantially more…

无序系统与神经网络 · 物理学 2020-02-20 Attila Szabó , Ulrich Schneider

We investigate the localisation properties of quasiperiodic tight-binding chains with hopping terms modulated by the interpolating Aubry-Andr\'e-Fibonacci (IAAF) function. This off-diagonal IAAF model allows for a smooth and controllable…

无序系统与神经网络 · 物理学 2024-06-21 Hugo Tabanelli , Claudio Castelnovo , Antonio Štrkalj

Low dimensional quasiperiodic systems exhibit localization transitions by turning all quantum states localized after a critical quasidisorder. While certain systems with modified or constrained quasiperiodic potential undergo multiple…

量子气体 · 物理学 2022-06-14 Ashirbad Padhan , Mrinal Kanti Giri , Suman Mondal , Tapan Mishra

In this paper we demonstrate, using a couple of variants of a two-strand ladder network that, a quasiperiodic Aubry-Andr\'e-Harper (AAH) modulation applied to the vertical strands, mimicking a deterministic distortion in the network, can…

介观与纳米尺度物理 · 物理学 2024-11-25 Sougata Biswas

We study localization in a quasiperiodic spinful antiferromagnetic Hubbard ring within a self-consistent Hartree-Fock framework, emphasizing the interplay of quasiperiodicity, staggered Zeeman-field-induced antiferromagnetic order, and…

介观与纳米尺度物理 · 物理学 2026-04-01 Souvik Roy , Ranjini Bhattacharya

Localization properties of particles in one-dimensional incommensurate lattices without interaction are investigated with models beyond the tight-binding Aubry-Andr\'e (AA) model. Based on a tight-binding t_1 - t_2 model with finite…

量子物理 · 物理学 2009-09-08 J. Biddle , B. Wang , D. J. Priour , S. Das Sarma

Uncorrelated disorder potential in one-dimensional lattice definitely induces Anderson localization, while quasiperiodic potential can lead to both localized and extended phases, depending on the potential strength. We investigate the…

无序系统与神经网络 · 物理学 2021-09-27 R. Wang , K. L. Zhang , Z. Song

Within the framework of the Aubry-Andre model, one kind of self-dual quasiperiodic lattice, it is known that a sharp transition occurs from \emph{all} eigenstates being extended to \emph{all} being localized. The common perception for this…

无序系统与神经网络 · 物理学 2013-12-04 Gang Wang , Nianbei Li , Tsuneyoshi Nakayama
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