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Equilibration dynamics of hot oxygen atoms following O2 dissociation on Pd(100) and Pd(111) surfaces are investigated by molecular dynamics simulations based on a scalable neural network potential enabling first-principles description of O2…

材料科学 · 物理学 2023-04-24 Qidong Lin , Bin Jiang

We re-examine and correct an earlier derivation of the distribution of the Wigner phase delay time for wave reflection from a long one-dimensional disordered conductor treated in the continuum limit. We then numerically compare the…

无序系统与神经网络 · 物理学 2007-05-23 S. Anantha Ramakrishna , N. Kumar

We report an asymmetric behavior of optical pulses during their propagation through a time-varying linear optical medium. The refractive index of the medium is considered to be varying with time and complex such that a sufficient amount of…

光学 · 物理学 2020-07-17 Piyali Biswas , Harsh K. Gandhi , Vaibhab Mishra , Somnath Ghosh

We consider quantum wave propagation in one-dimensional quasiperiodic lattices. We propose an iterative construction of quasiperiodic potentials from sequences of potentials with increasing spatial period. At each finite iteration step the…

材料科学 · 物理学 2015-06-19 C. Danieli , K. Rayanov , B. Pavlov , G. Martin , S. Flach

In a recent article, Wang et al (Phys. Chem. Chem. Phys., 22, 10624 (2020)) introduced a new class of interparticle potential for molecular simulations. The potential is defined by a single range parameter, eliminating the need to decide…

统计力学 · 物理学 2023-11-08 Olivia S. Moro , Vincent Ballenegger , Tom L. Underwood , Nigel B. Wilding

Observations show that propagating magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere. The technique of MHD seismology uses the wave observations combined with MHD wave theory to indirectly infer physical parameters of…

太阳与恒星天体物理 · 物理学 2015-06-11 M. Goossens , R. Soler , I. Arregui , J. Terradas

Recently, a long-term model of HIV infection dynamics was developed to describe the entire time course of the disease. It consists of a large system of ODEs with many parameters, and is expensive to simulate. In the current paper, this…

种群与进化 · 定量生物学 2016-04-20 Tyson Loudon , Stephen Pankavich

While there have been many developments in computational probes of both strongly-correlated molecular systems and machine-learning accelerated molecular dynamics, there remains a significant gap in capabilities in simulating accurate…

化学物理 · 物理学 2025-04-04 Yannic Rath , George H. Booth

The results from 2.5-dimensional Particle-in-Cell simulations for the interaction of a picosecond-long ignition laser pulse with a plasma pellet of 50-$\mu m$ diameter and 40 critical density are presented. The high density pellet is…

等离子体物理 · 物理学 2009-11-11 C. Ren , M. Tzoufras , J. Tonge , W. B. Mori , F. S. Tsung , M. Fiore , R. A. Fonseca , L. O. Silva , J. -C. Adam , A. Heron

The thermodynamic (TD) properties of biological membranes play a central role for living systems. It has been suggested, for instance, that nonlinear pulses such as action potentials (APs) can only exist if the membrane state is in vicinity…

生物物理 · 物理学 2020-07-16 Christian Fillafer , Anne Paeger , Matthias F. Schneider

Recent studies have reported that T cells can integrate signals between interrupted encounters with Antigen Presenting Cells (APCs) in such a way that the process of signal integration exhibits a form of memory. Here, we carry out a…

分子网络 · 定量生物学 2007-07-18 Jason W. Locasale

The research works on the biological effects of electromagnetic (EM) radiation have increased globally. Computer simulation models were developed to assess exposure of square, rectangular, pyramidal, and cylindrical water containers to…

An analytical expression for the diffusion wall time of a toroidally segmented conducting shell (the Armadillo configuration) is derived by extending the continuous-shell formulation to include the non-axisymmetric current pattern imposed…

等离子体物理 · 物理学 2026-05-07 D. Abate , A. Corbioli

Propagating slow waves in coronal loops exhibit a damping which depends upon the frequency of the waves. In this study we aim to investigate the relationship of the damping length (L$_d$) with the frequency of the propagating wave. We…

太阳与恒星天体物理 · 物理学 2016-03-23 Sudip Mandal , Norbert Magyar , Ding Yuan , Tom Van Doorsselaere , Dipankar Banerjee

We propose a two-dimensional model for a complete description of the dynamics of molecular motors, including both the processive movement along track filaments and the dissociation from the filaments. The theoretical results on the…

生物大分子 · 定量生物学 2009-11-10 Ping Xie , Shuo-Xing Dou , Peng-Ye Wang

We propose a correspondence between certain multiband linear cellular automata - models of computation widely used in the description of physical phenomena - and endomorphisms of certain algebraic unipotent groups over finite fields. The…

动力系统 · 数学 2024-04-22 Jakub Byszewski , Gunther Cornelissen

Recurrent, arc-shaped intensity disturbances were detected by EUV channels in an active region. The fronts were observed to propagate along a coronal loop bundle rooted in a small area within a sunspot umbra. Previous works have linked…

太阳与恒星天体物理 · 物理学 2022-11-02 M. V. Sieyra , S. Krishna Prasad , G. Stenborg , E. Khomenko , T. Van Doorsselaere , A. Costa , A. Esquivel , J. M. Riedl

Emitters strongly coupled to a photonic crystal provide a powerful platform for realizing novel quantum light-matter interactions. Here we study the optical properties of a three-level artificial atomic chain coupled to a one-dimensional…

量子物理 · 物理学 2019-05-01 Guo-Zhu Song , Leong-Chuan Kwek , Fu-Guo Deng , Gui-Lu Long

A great amount of endeavor has recently been devoted to activity detection for massive machine-type communications in cell-free multiple-input multiple-output (MIMO) systems. However, as the number of antennas at the access points (APs)…

信号处理 · 电气工程与系统科学 2026-05-27 Jingreng Lei , Yang Li , Ziyue Wang , Qingfeng Lin , Ya-Feng Liu , Yik-Chung Wu

It is anticipated that much higher network capacity will be achieved by the fifth generation (5G) small cell networks incorporated with the millimeter wave (mmWave) technology. However, mmWave signals are more sensitive to blockages than…

网络与互联网体系结构 · 计算机科学 2018-12-06 Jiaqi Chen , Xiaohu Ge , Qiang Ni