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We study the effects of quenched disorder on electrons in a 3D nodal-line semimetal. Disorder leads to significant renormalisations of the quasiparticle properties due to ultraviolet processes, i.e., processes of scattering in a large band…

Mesoscale and Nanoscale Physics · Physics 2023-10-31 Siyu Zhu , Sergey Syzranov

In this paper, the average density of states (ADOS) with a binary alloy disorder in disordered graphene systems are calculated based on the recursion method. We observe an obvious resonant peak caused by interactions with surrounding…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Shangduan Wu , Lei Jing , Qunxiang Li , Q. W. Shi , Jie Chen , Xiaoping Wang , Jinlong Yang

In nonlinear systems analysis, minor fractions of higher-order dynamics are often neglected for simplicity. Here, we show that machine epsilon levels of parasitic higher-order dynamics due to computer roundoff alone can cause divergence of…

Computational Physics · Physics 2010-06-03 Cheng Li , Guo-Qiang Wu , Chi-Sang Poon

We present a numerical study of the quasi-particle density of states (DoS) of two-dimensional d-wave superconductors in the presence of smooth disorder. We find power law scaling of the DoS with an exponent depending on the strength of the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Bodo Huckestein , Alexander Altland

Precision is a virtue throughout science in general and in optics in particular where carefully fabricated nanometer-scale devices hold great promise for both classical and quantum photonics [1-6]. In such nanostructures, unavoidable…

The objective of this article is to investigate the profound nonlinear optical response exhibited by inversion symmetric fullerene molecules under the influence of different types of disorders described by the Anderson model. Our aim is to…

Optics · Physics 2023-09-06 H. K. Avetissian , S. Sukiasyan , H. H. Matevosyan , G. F. Mkrtchian

We study the effects of disorder on strongly coupled compressible matter in 2+1 dimensions. Our system consists of a D3/D5 intersection at finite temperature and in the presence of a disordered chemical potential. We first study the impact…

High Energy Physics - Theory · Physics 2016-08-24 Mario Araujo , Daniel Arean , Javier M. Lizana

To obtain the total response of the system, the effect of disorder cannot be neglected, as it introduces a new contribution (i.e. extrinsic) in the total response of the system. In the study of dynamical (AC) effects, the interband response…

Mesoscale and Nanoscale Physics · Physics 2025-07-02 Vivek Pandey , Pankaj Bhalla

We show numerically that in a binary system of Yukawa particles, a dispersity driven disordering transition occurs. In the presence of quenched disorder this disordering transition coincides with a marked increase in the depinning…

Soft Condensed Matter · Physics 2009-11-13 C. Reichhardt , C. J. Olson Reichhardt

We study systems with energy bands in two dimensions, hosting higher order Van Hove singularities (HOVHS) in the presence of disorder, using standard diagrammatic techniques for impurity averaging. In the clean limit, such singularities…

Strongly Correlated Electrons · Physics 2022-03-21 Anirudh Chandrasekaran , Joseph J. Betouras

In this letter, we study the effects of weak off-diagonal disorder on conjugated polymers with a doubly degenerate ground-state. We find that disorder induces a finite density of neutral solitons in the lattice dimerization of a polymer…

Soft Condensed Matter · Physics 2007-05-23 Marc Thilo Figge , Maxim V. Mostovoy , Jasper Knoester

Using a random array of coupled metallic nanowires as a generic example of disordered plasmonic systems, we demonstrate that the structural disorder induces localization of light in these nanostructures at a deep-subwavelength scale. The ab…

We study the density of states (DOS) in diffusive superconductors with pointlike magnetic impurities of arbitrary strength described by the Poissonian statistics. The mean-field theory predicts a nontrivial structure of the DOS with the…

Superconductivity · Physics 2016-04-26 Yakov V. Fominov , Mikhail A. Skvortsov

A diagrammatic method is applied to study the effects of commensurability in two-dimensional disordered crystalline metals by using the particle-hole symmetry with respect to the nesting vector P_0={\pm{\pi}/a, {\pi}/a} for a half-filled…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 E. P. Nakhmedov , M. Kumru , R. Oppermann

We report on the theoretical study of anomalous phase gradients induced by Rayleigh anomalies in finite nanoparticle chains. These phase gradients, defined with respect to the phase of the applied plane wave, cause a deviation of the…

Optics · Physics 2022-12-20 Lior Michaeli , Ofer Doron , Yakir Hadad , Haim Suchowski , Tal Ellenbogen

We investigate numerically and experimentally the near-field response of disordered arrays comprising asymmetrically split ring resonators that exhibit strong cooperative response. Our simulations treat the unit cell split ring resonators…

Strong light-induced interactions between atoms are known to cause nonlinearities at a few-photon level which are crucial for applications in quantum information processing. Compared to free space, the scattering and the light-induced…

Quantum Physics · Physics 2021-12-22 Artur Skljarow , Harald Kübler , Charles S. Adams , Tilman Pfau , Robert Löw , Hadiseh Alaeian

Multilayer assemblies of metal nanoparticles can act as photonic structures, where collective plasmon resonances hybridize with cavity modes to create plasmon-polariton states. For sufficiently strong coupling, plasmon polaritons…

We provide a self-consistent electromagnetic theory of the coupling between dipole emitters and dissipative nanoresonators. The theory that relies on the concept of quasi-normal modes with complex frequencies provides an accurate…

Mesoscale and Nanoscale Physics · Physics 2017-05-25 C. Sauvan , J. P. Hugonin , I. S. Maksymov , P. Lalanne

We investigate the effect of disorder in the laser intensity on the dynamics of dark-state polaritons in an array of 20 cavities, each containing an ensemble of four-level atoms that is described by a Bose-Hubbard Hamiltonian. We examine…

Mesoscale and Nanoscale Physics · Physics 2020-05-15 Abuenameh Aiyejina , Roger Andrews