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The evolution of images with physics-based dynamics is often spatially localized and nonlinear. A switching linear dynamic system (SLDS) is a natural model under which to pose such problems when the system's evolution randomly switches over…

系统与控制 · 电气工程与系统科学 2021-02-23 Parisa Karimi , Mark Butala , Zhizhen Zhao , Farzad Kamalabadi

We study bifurcation behavior in periodic perturbations of two-dimensional symmetric systems exhibiting codimension-two bifurcations with a double eigenvalue when the frequencies of the perturbation terms are small. We transform the…

动力系统 · 数学 2023-02-15 Kazuyuki Yagasaki

Consider a ultraviolet (UV) scattering communication system where the position of the transmitter is fixed and the receiver can move around on the ground. To obtain the link gain effectively and economically, we propose an algorithm based…

信号处理 · 电气工程与系统科学 2019-04-09 Difan Zou , Zhengyuan Xu , Chen Gong

It is demonstrated the existence of multidimensional matter-wave solitons in a crossed optical lattice (OL) with linear OL in the $x-$direction and nonlinear OL (NOL) in the $y-$direction, where the NOL can be generated by a periodic…

原子物理 · 物理学 2010-11-15 H. L. F. da Luz , F. Kh. Abdullaev , A. Gammal , M. Salerno , Lauro Tomio

Here, we present a detailed study on the temperature and angular dependence of the Shubnikov-de-Haas (SdH) effect in the semi-metal WTe$_2$. This compound was recently shown to display a very large non-saturating magnetoresistance which was…

材料科学 · 物理学 2015-10-05 D. Rhodes , S. Das , Q. R. Zhang , B. Zeng , N. R. Pradhan , N. Kikugawa , E. Manousakis , L. Balicas

Topological physics provides novel insights for designing functional photonic devices, such as magnetic-free optical diodes, which are important in optical engineering and quantum information processing. Past efforts mostly focus on the…

光学 · 物理学 2025-05-15 Xiao Liu , Jiefei Wang , Ruosong Mao , Huizhu Hu , Shi-Yao Zhu , Xingqi Xu , Han Cai , Da-Wei Wang

The purpose of this work is to understand the fundamental connection between structural correlations and light localization in three-dimensional (3D) open scattering systems of finite size. We numerically investigate the transport of vector…

光学 · 物理学 2022-03-14 Fabrizio Sgrignuoli , Salvatore Torquato , Luca Dal Negro

We introduce a system of propagation equations for the fundamental-frequency (FF) and second-harmonic (SH) waves in the bulk waveguide with the effective fractional diffraction and quadratic (chi ^(2)) nonlinearity. The numerical solution…

斑图形成与孤子 · 物理学 2024-06-03 Hidetsugu Sakaguchi , Boris A. Malomed

Analytical expressions for the magnetization and the longitudinal conductivity of nanowires are derived in a magnetic field, B. We show that the interplay between size and magnetic field energy-level quantizations manifests itself through…

介观与纳米尺度物理 · 物理学 2009-11-11 A. S. Alexandrov , V. V. Kabanov

Synthetic photonic lattice with temporally controlled potentials is a versatile platform for realizing wave dynamics associated with physical areas of optics and quantum physics. Here, discrete optics in one-dimensionally synthetic photonic…

光学 · 物理学 2020-10-28 Zengrun Wen , Kaile Wang , Baole Lu , Xinyuan Qi , Haowei Chen , Jintao Bai

We study numerically the cubic-quintic-septic Swift-Hohenberg (SH357) equation on bounded one-dimensional domains. Under appropriate conditions stripes with wave number $k\approx 1$ bifurcate supercritically from the zero state and form…

斑图形成与孤子 · 物理学 2019-07-17 Edgar Knobloch , Hannes Uecker , Daniel Wetzel

High magnetic field and low temperature transport is carried out in order to characterize the charge carriers of $\text{PtSe}_2$. In particular, the Shubnikov-de Haas oscillations arising at applied magnetic field strengths $\gtrsim…

材料科学 · 物理学 2025-10-31 Julian Max Salchegger , Rajdeep Adhikari , Bogdan Faina , Alberta Bonanni

We examine the influence of microwave photoexcitation on the amplitude of Shubnikov-de Haas (SdH) oscillations in a two dimensional GaAs/AlGaAs electron system in a regime where the cyclotron frequency, $\omega_{c}$, and the microwave…

介观与纳米尺度物理 · 物理学 2015-05-27 A. N. Ramanayaka , R. G. Mani , W. Wegscheider

The two-dimensional cubic nonlinear Schrodinger equation (NLS) can be used as a model of phenomena in physical systems ranging from waves on deep water to pulses in optical fibers. In this paper, we establish that every one-dimensional…

斑图形成与孤子 · 物理学 2016-09-08 John D. Carter , Harvey Segur

The Schr\"odinger equation with a harmonic potential coupled to the Poisson equation, called the Schr\"odinger-Newton-Hooke (SNH) system, has been considered in a variety of physical contexts, ranging from quantum mechanics to general…

数学物理 · 物理学 2021-06-02 Filip Ficek

The phase-shifting digital holography (PSDH) is a widely used approach for recovering signals by their interference (with reference waves) intensity measurements. Such measurements are traditionally from multiple shots (corresponding to…

泛函分析 · 数学 2023-05-16 Youfa Li , Shengli Fan , Deguang Han

We derive the Whitham modulation equations for the nonlinear Schr\"odinger equation in the plane (2d NLS) with small dispersion. The modulation equations are derived in terms of both physical and Riemann variables; the latter yields…

斑图形成与孤子 · 物理学 2021-09-21 Mark J. Ablowitz , Justin T. Cole , Igor Rumanov

Two-dimensional electron systems with fascinating properties exist in multilayers of standard semiconductors, on helium surfaces, and in oxides. Compared to the two-dimensional (2D) electron gases of semiconductors, the 2D electron systems…

We have measured the zero-bias differential tunneling conductance of InAs/AlSb/GaS b/AlSb/InAs heterostructures at low temperatures (1.7K < T < 60K) and unde r a magnetic field at various angles with the heterostructure's interfaces. Shubni…

介观与纳米尺度物理 · 物理学 2009-10-31 E. M. González , Y. Lin , E. E. Mendez

We report the computational discovery of complex, topologically charged, and spectrally stable states in three-dimensional multi-component nonlinear wave systems of nonlinear Schr{\"o}dinger type. While our computations relate to…

斑图形成与孤子 · 物理学 2023-02-01 N. Boullé , I. Newell , P. E. Farrell , P. G. Kevrekidis