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相关论文: Disorder enhanced transport as a general feature o…

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Overcoming the detrimental effect of disorder at the nanoscale is very hard since disorder induces localization and an exponential suppression of transport efficiency. Here we unveil novel and robust quantum transport regimes achievable in…

We investigate the effects of disorder and shielding on quantum transports in a two dimensional system with all-to-all long range hopping. In the weak disorder, cooperative shielding manifests itself as perfect conducting channels identical…

无序系统与神经网络 · 物理学 2023-04-14 Si-Si Wang , Kangkang Li , Yi-Ming Dai , Hui-Hui Wang , Yi-Cai Zhang , Yan-Yang Zhang

Understanding the interplay between disorder, environment and interactions is key to elucidating the transport properties of open quantum systems, from excitons in photosynthetic networks to qubits in ion traps. This interplay is studied…

量子物理 · 物理学 2020-05-12 Elinor Zerah-Harush , Yonatan Dubi

Reentrant localization has recently been observed in systems with quasi-periodic nearest-neighbor hopping, where the interplay between dimerized hopping and staggered disorder is identified as the driving mechanism. However, the robustness…

无序系统与神经网络 · 物理学 2024-12-19 Pei-Jie Chang , Qi-Bo Zeng , Jinghui Pi , Dong Ruan , Gui-Lu Long

We extend the standard SSH model to include long range hopping and disorder, and study how the electronic and topological properties are affected. We show that long range hopping can change the symmetry class and the topological invariant,…

介观与纳米尺度物理 · 物理学 2019-02-07 Beatriz Pérez-González , Miguel Bello , Álvaro Gómez-León , Gloria Platero

We study quantum enhancement of transport in open systems in the presence of disorder and dephasing. Quantum coherence effects may significantly enhance transport in open systems even in the deep classical regime (where the decoherence rate…

介观与纳米尺度物理 · 物理学 2017-03-01 Yang Zhang , G. Luca Celardo , Fausto Borgonovi , Lev Kaplan

Excitonic transport in static disordered one dimensional systems is studied in the presence of thermal fluctuations that are described by the Haken-Strobl-Reineker model. For short times, non-diffusive behavior is observed that can be…

介观与纳米尺度物理 · 物理学 2015-05-05 Jeremy M. Moix , Michael Khasin , Jianshu Cao

We numerically study excitation transfer in an artificial LH1-RC complex -- an $N$-site donor ring coupled to a central acceptor -- driven by a narrowband optical mode and evolved under a Lindblad master equation with loss and dephasing. In…

光学 · 物理学 2025-09-27 Stephon Alexander , Roger Andrews , Oliver Fox , Sarben Sarkar

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

We investigate transport properties of topologically disordered, three-dimensional, one-particle, tight binding models, featuring site distance dependent hopping terms. We start from entirely disordered systems into which we gradually…

无序系统与神经网络 · 物理学 2013-10-03 Abdellah Khodja , Jochen Gemmer

We investigate quantum transport in binary tree structures and in hypercubes for the disordered Frenkel-exciton Hamiltonian under pure dephasing noise. We compute the energy transport efficiency as a function of disorder and dephasing…

量子物理 · 物理学 2016-01-05 Leonardo Novo , Masoud Mohseni , Yasser Omar

We study the interplay between disorder and light-matter coupling by considering a disordered one-dimensional chain of lossy dipoles coupled to a multimode optical cavity, through a microscopically derived Hamiltonian. Such a system,…

介观与纳米尺度物理 · 物理学 2023-01-04 Thomas F. Allard , Guillaume Weick

We study transport of interacting particles in weakly disordered media. Our one-dimensional system includes (i) disorder: the hopping rate governing the movement of a particle between two neighboring lattice sites is inhomogeneous, and (ii)…

统计力学 · 物理学 2009-05-13 E. Ben-Naim , P. L. Krapivsky

We study motion of a quantum wavepacket in a one-dimensional potential with correlated disorder. Presence of long-range potential correlations allows for existence of both localized and extended states. Weak time-dependent perturbation in…

无序系统与神经网络 · 物理学 2015-02-09 Denis Makarov , Leonid Kon'kov

We study the interplay between dephasing, disorder, and openness on transport efficiency in a one-dimensional chain of finite length $N$, and in particular the beneficial or detrimental effect of dephasing on transport. The excitation moves…

介观与纳米尺度物理 · 物理学 2017-11-08 Yang Zhang , G. Luca Celardo , Fausto Borgonovi , Lev Kaplan

Molecular materials have been studied as a potential platform for highly efficient transport such as exciton transport and quantum information spreading. However, one detrimental factor to transport efficiency is the inherent disorder of…

量子物理 · 物理学 2024-09-12 Weijun Wu , Ava N. Hejazi , Gregory D. Scholes

We study transport properties of a disordered tight-binding model (XX spin chain) in the presence of dephasing. Focusing on diffusive behavior in the thermodynamic limit at high energies, we analytically derive the dependence of…

强关联电子 · 物理学 2013-03-05 Marko Znidaric , Martin Horvat

We study the combined effects of disorder and range of the couplings on the phase diagram of one-dimensional topological superconductors. We consider an extended version of the Kitaev chain where hopping and pairing terms couple many sites.…

强关联电子 · 物理学 2023-04-28 Gianluca Francica , Edoardo Maria Tiburzi , Luca Dell'Anna

We study one-dimensional systems with random diagonal disorder but off-diagonal short-range correlations imposed by structural constraints. We find that these correlations generate effective conduction channels for finite systems. At a…

无序系统与神经网络 · 物理学 2009-11-10 Wei Zhang , Sergio E. Ulloa

We introduce a two-dimensional short-range correlated disorder that is the natural generalization of the well-known one-dimensional dual random dimer model [Phys. Rev. Lett 65, 88 (1990)]. We demonstrate that, as in one dimension, this…

量子气体 · 物理学 2015-11-25 Pablo Capuzzi , Mario Gattobigio , Patrizia Vignolo
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