Artículo
Generation of localized modes in an electrical lattice using subharmonic driving
Autor/es | English, Lars Q.
Palmero Acebedo, Faustino Candiani, P. Cuevas-Maraver, Jesús Carretero-González, Ricardo Kevrekidis, Panayotis G. Sievers, Albert J. |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2012 |
Fecha de depósito | 2015-02-03 |
Publicado en |
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Resumen | We show experimentally and numerically that an intrinsic localized mode (ILM) can be stably produced (and experimentally observed) via subharmonic, spatially homogenous driving in the context of a nonlinear electrical ... We show experimentally and numerically that an intrinsic localized mode (ILM) can be stably produced (and experimentally observed) via subharmonic, spatially homogenous driving in the context of a nonlinear electrical lattice. The precise nonlinear spatial response of the system has been seen to depend on the relative location in frequency between the driver frequency, $\omega_d$, and the bottom of the linear dispersion curve, $\omega_0$. If $\omega_d / 2$ lies just below $\omega_0$, then a single ILM can be generated in a 32-node lattice, whereas when $\omega_d / 2$ lies within the dispersion band, a spatially extended waveform resembling a train of ILMs results. To our knowledge, and despite its apparently broad relevance, such an experimental observation of subharmonically driven ILMs has not been previously reported. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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PRL_Cuevas_12_Feb.pdf | 1.504Mb | [PDF] | Ver/ | |