English, Lars Q., A. Zampetaki, P.G. Kevrekidis, K. Skowronski, C.B. Fritz, and Saidou Abdoulkary. Analysis and Observation of Moving Domain Fronts in a Ring of Coupled Electronic Self-Oscillators. Chaos 27 (2017): e103125....
English, L. Q., S. Wheeler, Y. Shen, G. P. Veldes, N. Whitaker, P. G. Kevrekidis, and D. J. Frantzeskakis. Backward-Wave Propagation and Discrete Solitons in a Left-Handed Electrical Lattice. Physics Letters A 375, no. 9...
We study experimentally and numerically the existence and stability properties of discrete breathers in a periodic nonlinear electric line. The electric line is composed of single cell nodes, containing a varactor diode and an...
We derive the Kuramoto-Sakaguchi model from the basic circuit equations governing two coupled Wien-bridge oscillators. A Wien-bridge oscillator is a particular realization of a tunable autonomous oscillator that makes use of...
For more information on the published version, visit Science Direct's Website., Abdoulkary, Saidou, L.Q. English, and Alidou Mohamadou. Envelope Solitons in a Left-Handed Nonlinear Transmission Line with Josephson Junction....
We observe dark and bright intrinsic localized modes (ILMs), also known as discrete breathers, experimentally and numerically in a diatomic-like electrical lattice. The experimental generation of dark ILMs by driving a...
For more information on the published version, visit IOP Publishing's Website., Experimental evidence for the generation of intrinsic localized modes (ILMs) in a nonlinear electrical transmission line is presented both via...
The pendulum chain with torsional spring coupling represents a physical system that is described exactly by the spatially discrete sG equation. In order to study its solutions experimentally, however, we have to drive the...
For more information on the published version, visit IOP Publishing's Website., Mhiri, Houssem, Moyi Tian, Erin Wynne, Sean Jones, A. Mareno, and L.Q. English. "An Experimental Survey of Chaos and Symmetry Breaking in Coupled...
We show experimentally and numerically that an intrinsic localized mode (ILM) can be stably produced (and experimentally observed) via subharmonic, spatially homogeneous driving in the context of a nonlinear electrical lattice....
Sato, M., L.Q. English, B.E. Hubbard, and A.J. Sievers. Influence of Sample Shape on the Production of Intrinsic Localized Modes in an Antiferromagnetic Lattice. Journal of Applied Physics 91, no. 10 (2002): 8676-8678....
Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give...
We examine theoretically and experimentally the localized electrical modes existing in a bi-inductive electrical lattice containing a bulk or a surface capacitive impurity. By means of the formalism of lattice Green's...
An indirect method of producing intrinsic localized modes (ILM’s) is to drive an unstable uniform mode to large amplitude. In this investigation the intimate connection between the shape-dependent demagnetization factor, the...
Published as:Palmero, F., J. Han, L.Q. English, T.J. Alexander, and P.G. Kevrekidis. Multifrequency and Edge Breathers in the Discrete sine-Gordon System via Subharmonic Driving: Theory, Computation and Experiment. Physics...
The weak dissipation of spin waves in magnetic materials make antiferromagnets realistic condensed matter systems for the experimental observation of intrinsic localized modes of nanoscale size. By employing a chirped high...
This published version is made available on Dickinson Scholar with the permission of the publisher. For more information on the published version, visit Scientific Research Publishing's Website. This work is licensed under a...
English, L. Q., F. Palmero, J. F. Stormes, J. Cuevas, R. Carretero-González, and P. G. Kevrekidis. Nonlinear Localized Modes in Two-dimensional Electrical Lattices. Physical Review E, 88 (2013): e022912., We report the...
We begin by analyzing, using basic physics considerations, under what conditions it becomes energetically favorable to use aggressive regenerative braking to reach a lower speed over “coasting” where one relies solely on air...
We present detailed analytical and experimental results for a system of two comparator-based relaxation oscillators that are coupled via threshold modulation. Starting with the op-amp circuit equations, we derive parameter...
English, L.Q., C. Kerestes, and G. Rydzag [i.e. Rydzak]. Renormalized Resonance Frequencies of a Ferrite Sphere Coupled to an LR Circuit: Comparison of Theory and Experiment. Concepts in Magnetic Resonance Part B: Magnetic...
For more information on the published version, visit IOP Publishing's Website., It has long been known that when a cable of specified length is hung between two poles, it takes the shape of a catenary—a hyperbolic cosine...
We explore both analytically and numerically an ensemble of coupled phase oscillators governed by a Kuramoto-type system of differential equations. However, we have included the effects of time delay (due to finite...
The spontaneous synchronization of phase-coupled, non-identical oscillators is explored numerically via the famous Kuramoto model. The conditions for synchronization are examined as a function of the coupling network. I argue...
The main purpose of this book is to introduce a broader audience to emergence by illustrating how discoveries in the physical sciences have informed the ways we think about it. In a nutshell, emergence asserts that...
English, Lars Q., F. Palmero, A.J. Sievers, P.G. Kevrekidis, and D.H. Barnak. Traveling and Stationary Intrinsic Localized Modes and Their Spatial Control in Electrical Lattices. Physical Review E 81, no. 4 (2010): e046605....
This book adds a computational dimension to introductory physics mechanics course, and is intended to accompany the textbook and other course materials for that course. It uses the programming language VPython in the...