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We investigate an off-diagonal quasicrystal featuring simultaneous off-diagonal and diagonal quasiperiodic modulations. By analyzing the fractal dimension, we map out the delocalization-localization phase diagram. We demonstrate that…

统计力学 · 物理学 2026-01-27 Shan Suo , Ao Zhou , Yanting Chen , Shujie Cheng , Gao Xianlong

We report on a new class of critical states in the energy spectrum of general Fibonacci systems. By introducing a transfer matrix renormalization technique, we prove that the charge distribution of these states spreads over the whole…

凝聚态物理 · 物理学 2009-10-28 Enrique Macia , Francisco Dominguez-Adame

Extraordinary new materials named quasicrystals and characterized by noncrystallographic rotational symmetry and quasiperiodic translational properties have attracted scrutiny. Study of quasicrystals may shed light on the most basic notions…

强关联电子 · 物理学 2013-06-27 V. R. Shaginyan , A. Z. Msezane , K. G. Popov , G. S. Japaridze , V. A. Khodel

We study the interplay between quasi-periodic disorder and superconductivity in a 1D tight-binding model with the quasi-periodic modulation of on-site energies that follow the Fibonacci rule and all the eigenstates are multifractal. As a…

超导电性 · 物理学 2023-07-12 Meng Sun , Tilen Čadež , Igor Yurkevich , Alexei Andreanov

The quantum metric, a key component of quantum geometry, plays a central role in a wide range of physical phenomena and has been extensively studied in periodic crystals and moir\'{e} materials. Here, we systematically investigate quantum…

介观与纳米尺度物理 · 物理学 2025-07-08 Jundi Wang , Yuxiao Chen , Huaqing Huang

Due to the absence of periodic length scale, electronic states and their topological properties in quasicrystals have been barely understood. Here, we focus on one dimensional quasicrystal and reveal that their electronic critical states…

介观与纳米尺度物理 · 物理学 2021-03-03 Junmo Jeon , SungBin Lee

We investigate the emergence of time quasicrystals (TQCs) in the open Dicke model, subjected to a quasi-periodic Fibonacci drive. TQCs are characterized by a robust sub-harmonic quasi-periodic response that is qualitatively distinct from…

量子物理 · 物理学 2026-02-06 Sk Anisur , Sayan Choudhury

Quantum dynamics on quasiperiodic geometries has recently gathered significant attention in ultra-cold atom experiments where non trivial localised phases have been observed. One such quasiperiodic model is the so called Fibonacci model. In…

无序系统与神经网络 · 物理学 2021-05-26 Cecilia Chiaracane , Francesca Pietracaprina , Archak Purkayastha , John Goold

Superconductivity was recently reported in several quasicrystalline systems. These are materials which are structurally ordered, but since they are not translationally invariant, the usual BCS theory does not apply. At the present time, the…

超导电性 · 物理学 2024-03-13 Ying Wang , Gautam Rai , Chris Matsumura , Anuradha Jagannathan , Stephan Haas

We evaluate the phase-coherent transport of electrons along linear structures of varying length, which are made from two types of potential wells set in either a periodic or a Fibonacci quasi-periodic sequence. The array is described by a…

介观与纳米尺度物理 · 物理学 2009-11-11 M. R. Bakhtiari , P. Vignolo , M. P. Tosi

We study the heating dynamics of a generic one dimensional critical system when driven quasiperiodically. Specifically, we consider a Fibonacci drive sequence comprising the Hamiltonian of uniform conformal field theory (CFT) describing…

In this paper we study transport properties of electrons on the two-dimensional honeycomb lattice. We consider a half-filled system in the vicinity of a symmetry-breaking transition from a semimetallic phase towards an insulating phase with…

强关联电子 · 物理学 2015-05-20 Lars Fritz

In moir\'e heterostructures, gate-tunable insulating phases driven by electronic correlations have been recently discovered. Here, we use transport measurements to characterize the gate-driven metal-insulator transitions and the metallic…

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 consider the effects of quasiperiodic spatial modulation on the quantum Hall plateau transition, by analyzing the Chalker-Coddington network model for the integer quantum Hall transition with quasiperiodically modulated link phases. In…

介观与纳米尺度物理 · 物理学 2024-02-27 Jonas F Karcher , Romain Vasseur , Sarang Gopalakrishnan

We describe a quasiperiodic optical lattice, created by a physical realization of the abstract cut-and-project construction underlying all quasicrystals. The resulting potential is a generalization of the Fibonacci tiling. Calculation of…

量子气体 · 物理学 2016-01-18 Kevin Singh , Kush Saha , Siddharth A. Parameswaran , David M. Weld

Generalized Wigner Crystal (GWC) is a novel quantum phase of matter driven by further-range interaction at fractional fillings of a lattice. The role of further range interaction as the driver for the incompressible state is akin to Wigner…

强关联电子 · 物理学 2024-10-10 Yiqing Zhou , D. N. Sheng , Eun-Ah Kim

We investigate the nonequilibrium response of quasiperiodic systems to boundary driving. In particular we focus on the Aubry-Andr\'e-Harper model at its metal-insulator transition and the diagonal Fibonacci model. We find that opening the…

无序系统与神经网络 · 物理学 2017-09-27 Vipin Kerala Varma , Clélia de Mulatier , Marko Znidaric

We study the emergence and stability of a prethermal phase in an integrable many-body system subjected to a Fibonacci drive. Despite not being periodic, Fibonacci drives have been shown to introduce dynamical constraints due to their…

统计力学 · 物理学 2024-04-11 Souradeep Ghosh , Sourav Bhattacharjee , Souvik Bandyopadhyay

Exotic tiling patterns of quasicrystals have gotten a lot of attention for unique quantum phenomena such as critical state and multifractality. In this regard, finding new quasi-periodic tiling patterns and the relevant quantum states is…

介观与纳米尺度物理 · 物理学 2022-06-01 Junmo Jeon , SungBin Lee
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