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Listar por autor "Kevrekidis, Panayotis G."
Mostrando ítems 21-40 de 99
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Artículo
Discrete breathers in a mechanical metamaterial
Duran, Henry; Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G.; Vainchtein, Anna (American Physical Society, 2023-01)We consider a previously experimentally realized discrete model that describes a mechanical metamaterial consisting of a ...
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Artículo
Discrete breathers in a nonlinear electric line: modeling, computation, and experiment
Palmero Acebedo, Faustino; English, Lars Q.; Cuevas-Maraver, Jesús; Carretero-González, Ricardo; Kevrekidis, Panayotis G. (2011)We study experimentally and numerically the existence and stability properties of discrete breathers in a periodic nonlinear ...
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Artículo
Discrete breathers in Klein–Gordon lattices. A deflation-based approach
Martín-Vergara, Francisca; Cuevas-Maraver, Jesús; Farrell, Patrick; Villatoro Machuca, Francisco Román; Kevrekidis, Panayotis G. (American Institute of Physics, 2023-11-21)Deflation is an efficient numerical technique for identifying new branches of steady state solutions to nonlinear partial ...
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Capítulo de Libro
Discrete breathers in Φ4 and related models
Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G. (Springer Nature, 2019)In this Chapter, we touch upon the wide topic of discrete breather (DB) formation with a special emphasis on the prototypical ...
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Artículo
Discrete embedded solitary waves and breathers in one-dimensional nonlinear lattices
Palmero Acebedo, Faustino; Molina Gálvez, Mario Ignacio; Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G. (Elsevier, 2022-02)For a one-dimensional linear lattice, earlier work has shown how to systematically construct a slowly- decaying linear ...
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Artículo
Discrete peakons
Comech, Andrew; Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G. (2005-08-01)We demonstrate the possibility for explicit construction in a discrete Hamiltonian model of an exact solution of the form ...
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Artículo
Discrete solitons in nonlinear Schrödinger lattices with a power-law nonlinearity
Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G.; Frantzeskakis, Dimitri J.; Malomed, Boris A. (2009)We study the discrete nonlinear Schrödinger lattice model with the onsite nonlinearity of the general form, |u|2σu|u|2σu. ...
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Ponencia
Discrete solitons in optical BEC lattices. Effects of n-body interactions
Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G.; Karachalios, Nikolaos I.; Melvin, Thomas R.O.; Champneys, A. R.; Eilbeck, J. Chris (2006)In this poster we show some recent results concerning discrete solitons in strong optical lattices, which can be described ...
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Capítulo de Libro
DNLS with Impurities
Cuevas-Maraver, Jesús; Palmero Acebedo, Faustino (Springer, 2009)The past few years have witnessed an explosion of interest in discrete models and intrinsic localized modes (discrete ...
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Artículo
Easing COVID-19 lockdown measures while protecting the older restricts the deaths to the level of the full lockdown
Fokas, Athanassios S.; Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G. (Nature Research, 2021-03)Guided by a rigorous mathematical result, we have earlier introduced a numerical algorithm, which using as input the ...
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Artículo
Energy Criterion for the Spectral Stability of Discrete Breathers
Kevrekidis, Panayotis G.; Cuevas-Maraver, Jesús; Pelinovsky, Dmitry E. (American Physical Society, 2016)Discrete breathers are ubiquitous structures in nonlinear anharmonic models ranging from the prototypical example of the ...
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Ponencia
Energy localization and transport in two-dimensional electrical lattices
English, Lars Q.; Palmero Acebedo, Faustino; Stormes, Joseph F.; Cuevas-Maraver, Jesús; Carretero-González, Ricardo; Kevrekidis, Panayotis G. (NOLTA, 2013)Intrinsic localized modes (ILMs) have been generated and characterized in two-dimensional nonlinear electrical ...
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Artículo
Escape dynamics in the discrete repulsive φ4 model
Achilleos, V. A.; Álvarez Chillida, María Azucena; Cuevas-Maraver, Jesús; Frantzeskakis, Dimitri J.; Karachalios, Nikolaos I.; Kevrekidis, Panayotis G.; Sánchez-Rey, Bernardo (2013)We study deterministic escape dynamics of the discrete Klein-Gordon model with a repulsive quartic on-site potential. Using ...
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Artículo
Existence of bound states of a polaron with a breather in soft potentials
Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G.; Frantzeskakis, Dimitri J.; Bishop, Alan R. (2006)We consider polarons in models of coupled electronic and vibrational degrees of freedom, in the presence of a soft nonlinear ...
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Artículo
Existence, stability and spatio-temporal dynamics of time-quasiperiodic solutions on a finite background in discrete nonlinear Schrödinger models
Charalampidis, E. G.; James, Guillaume; Cuevas-Maraver, Jesús; Hennig, Dirk; Karachalios, Nikos I.; Kevrekidis, Panayotis G. (Elsevier, 2024-07)In the present work we explore the potential of models of the discrete nonlinear Schrödinger (DNLS) type to support spatially ...
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Artículo
Experimental and numerical observation of dark and bright breathers in the band gap of a diatomic electrical lattice
Palmero Acebedo, Faustino; English, Lars Q.; Chen, Xuan-Lin; Li, Weilun; Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G. (American Physical Society, 2019)We observe dark and bright intrinsic localized modes (ILMs), also known as discrete breathers, experimentally and numerically ...
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Artículo
Floquet analysis of Kuznetsov-Ma breathers: A path towards spectral stability of rogue waves
Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G.; Frantzeskakis, Dimitri J.; Karachalios, Nikolaos I.; Haragus, Mariana; James, Guillaume (American Physical Society, 2017)In the present work, we aim at taking a step towards the spectral stability analysis of Peregrine solitons, i.e., wave ...
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Artículo
Floquet solitons in square lattices: Existence, stability, and dynamics
Parker, Ross; Aceves, Alejandro; Cuevas-Maraver, Jesús; Kevrekidis, Panayotis G. (American Physical Society, 2022-04)In the present work, we revisit a recently proposed and experimentally realized topological two-dimensional lattice with ...
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Artículo
From nodeless clouds and vortices to gray ring solitons and symmetry-broken states in two-dimensional polariton condensates
Rodrigues, Augusto S.; Kevrekidis, Panayotis G.; Carretero-González, Ricardo; Cuevas-Maraver, Jesús; Frantzeskakis, Dimitri J.; Palmero Acebedo, Faustino (2014)We consider the existence, stability and dynamics of the nodeless state and fundamental nonlinear excitations, such as ...
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Artículo
Generation of localized modes in an electrical lattice using subharmonic driving
English, Lars Q.; Palmero Acebedo, Faustino; Candiani, P.; Cuevas-Maraver, Jesús; Carretero-González, Ricardo; Kevrekidis, Panayotis G.; Sievers, Albert J. (2012)We show experimentally and numerically that an intrinsic localized mode (ILM) can be stably produced (and experimentally ...