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We present a multiple scattering analysis of robust interface states for flexural waves in thin elastic plates. We show that finite clusters of linear arrays of scatterers built on a quasi-periodic arrangement support bounded modes in the…

应用物理 · 物理学 2024-06-12 Marc Martí-Sabaté , Dani Torrent

With growing interest in mmWave connectivity for UAVs, a basic question is whether networks intended for terrestrial users can provide sufficient aerial coverage as well. To assess this possibility, the paper proposes a novel evaluation…

信号处理 · 电气工程与系统科学 2021-05-20 Seongjoon Kang , Marco Mezzavilla , Angel Lozano , Giovanni Geraci , William Xia , Sundeep Rangan , Vasilii Semkin , Giuseppe Loianno

Motivated by recent experiments, the theoretical study of wave propagation in time varying materials is of current interest. Although significant in nearly all such experiments, material dispersion is commonly neglected in theoretical…

光学 · 物理学 2025-11-25 Bryce Dixon , Calvin M. Hooper , Ian R. Hooper , Simon A. R. Horsley

A multi-reflection model of grating diffraction based on the simplified modal method is proposed. Simulation results for a guided mode resonance Brewster grating using our method and rigorous coupled wave analysis are presented to verify…

光学 · 物理学 2019-12-04 Changcheng Xiang , Jun Wu , Changhe Zhou , Wei Jia

Examining cables using many conductor transmission line theory has shed light on the modes supported by various cable types. However, so far the theory disregards the fundamental surface wave mode whose lateral confinement increases with…

经典物理 · 物理学 2021-11-22 Tobias Schaich , Daniel Molnar , Anas Al Rawi , Mike Payne

In this paper, we study wave transmission in a rotating fluid with multiple alternating convectively stable and unstable layers. We have discussed wave transmissions in two different circumstances: cases where the wave is propagative in…

流体动力学 · 物理学 2021-04-21 Tao Cai , Cong Yu , Xing Wei

Sound propagation is considered in range-independent environments and environments consisting of a range-independent background on which a weak range-dependent perturbation is superimposed. Recent work on propagation of both types of…

混沌动力学 · 物理学 2007-05-23 M. G. Brown , F. J. Beron-Vera , I. Rypina , I. Udovydchenkov

Efficient collective response to external perturbations is one of the most striking abilities of a biological system. Signal propagation through the group is an important condition for the imple- mentation of such a response. Information…

统计力学 · 物理学 2018-11-14 Andrea Cavagna , Daniele Conti , Irene Giardina , Tomas S. Grigera

We study the diffusion of monochromatic classical waves in a disordered acoustic medium by scattering theory. In order to avoid artifacts associated with mathematical point scatterers, we model the randomness by small but finite insertions.…

无序系统与神经网络 · 物理学 2009-11-11 Sijmen Gerritsen , Gerrit E. W. Bauer

In this paper, we provide an analytical study of the transmission eigenvalue problem with two conductivity parameters. We will assume that the underlying physical model is given by the scattering of a plane wave for an isotropic scatterer.…

偏微分方程分析 · 数学 2022-09-16 Rafael Ceja Ayala , Isaac Harris , Andreas Kleefeld , Nikolaos Pallikarakis

We extend previous halo effective field theory analyses of low-energy elastic scattering of $^{3}$He-$^{4}$He, including the $\frac{7}{2}^{-}$ $f$-wave resonance as an explicit degree of freedom. The presence of this resonance necessitates…

核理论 · 物理学 2025-11-27 Andrius Burnelis , Daniel R. Phillips

Models of diffusion driven pattern formation that rely on the Turing mechanism are utilized in many areas of science. However, many such models suffer from the defect of requiring fine tuning of parameters or an unrealistic separation of…

其他定量生物学 · 定量生物学 2015-03-17 Thomas Butler , Nigel Goldenfeld

This paper addresses compressed sensing of linear time-varying (LTV) wireless propagation links under the assumption of double sparsity i.e., sparsity in both the delay and Doppler domains, using Affine Frequency Division Multiplexing…

信息论 · 计算机科学 2024-07-04 Wissal Benzine , Ali Bemani , Nassar Ksairi , Dirk Slock

Unidirectional and backscattering-free propagation of sound waves is of fundamental interest in physics, and highly sought-after in engineering. Current strategies utilize topologically protected chiral edge modes in bandgaps, or complex…

软凝聚态物质 · 物理学 2023-06-14 Wenting Cheng , Kai Qian , Nan Cheng , Nicholas Boechler , Xiaoming Mao , Kai Sun

Training a language model on data scattered across bandwidth-limited nodes that cannot be centralized is a setting that arises in clinical networks, enterprise knowledge bases, and scientific consortia. We study the regime in which data…

机器学习 · 统计学 2026-05-28 Prasanjit Dubey , Xiaoming Huo

Communication at mmWave frequencies is one of the major innovations of the fifth generation of cellular networks, because of the potential multi-gigabit data rate given by the large amounts of available bandwidth. The mmWave channel,…

网络与互联网体系结构 · 计算机科学 2018-09-05 Michele Polese , Michele Zorzi

The utilization of millimeter wave frequency bands is expected to become prevalent in the following communication systems. However, generating and transmitting communication signals over these frequencies is not as straightforward as in…

信号处理 · 电气工程与系统科学 2024-05-06 M. Yaser Yağan , Ibrahim Hökelek , Ali E. Pusane , Ali Görçin

The millimeter wave (mmWave) band will provide multi-gigabits-per-second connectivity in the radio access of future wireless systems. The high propagation loss in this portion of the spectrum calls for the deployment of large antenna arrays…

信号处理 · 电气工程与系统科学 2020-07-15 Mattia Lecci , Paolo Testolina , Michele Polese , Marco Giordani , Michele Zorzi

In this paper, we propose a new probability distribution function which accurately describes turbulence-induced fading under a wide range of turbulence conditions. The proposed model, termed Double Generalized Gamma (Double GG), is based on…

数学物理 · 物理学 2015-05-26 Mohammadreza Aminikashani , Murat Uysal , Mohsen Kavehrad

We consider a fading channel in which a multi-antenna transmitter communicates with a multi-antenna receiver through a reconfigurable intelligent surface (RIS) that is made of $N$ reconfigurable passive scatterers impaired by phase noise.…

信息论 · 计算机科学 2020-05-18 Xuewen Qian , Marco Di Renzo , Jiang Liu , Abla Kammoun , Mohamed-Slim Alouini