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Listar por autor "Sánchez-Rey, Bernardo"
Mostrando ítems 1-20 de 33
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Artículo
Aging in the one-dimensional Ising model with Glauber dynamics
Prados Montaño, Antonio; Brey Abalo, José Javier; Sánchez-Rey, Bernardo (IOP Publishing Ltd., 1997-10-01)We study the zero-temperature limit of the one-dimensional Ising model with nearest-neighbor interactions and Glauber ...
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Artículo
Analytical approach to soliton ratchets in asymmetric potentials
Quintero, Niurka R.; Sánchez-Rey, Bernardo; Salerno, Mario (2005)We use soliton perturbation theory and collective coordinate ansatz to investigate the mechanism of soliton ratchets in a ...
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Artículo
Approximation of solitons in the discrete NLS equation
Cuevas-Maraver, Jesús; James, Guillaume; Kevrekidis, Panayotis G.; Malomed, Boris A.; Sánchez-Rey, Bernardo (World Scientific, 2008)We study four diferent approximations for finding the profile of discrete solitons in the one-dimensional Discrete Nonlinear ...
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Libro
Book of abstracts: NoLineal 2016, International Conference on Nonlinear Mathematics and Physics
Palmero Acebedo, Faustino; Carmona Centeno, Victoriano; Casado Pascual, Jesús; Cuevas-Maraver, Jesús; Fernández Sánchez, Fernando; García Medina, Elisabeth; Lemos, M. Carmen; Quintero, Niurka R.; Sánchez-Rey, Bernardo; Archilla, Juan F. R.; Universidad de Sevilla. Departamento de Física Aplicada I; Universidad de Sevilla. Departamento de Matemática Aplicada II (ETSI) (NoLineal 2016Juan F.R. Archilla, 2016-06-07) -
Artículo
Breathers for the discrete nonlinear Schrödinger equation with nonlinear hopping
Karachalios, Nikolaos I.; Sánchez-Rey, Bernardo; Kevrekidis, Panayotis G.; Cuevas-Maraver, Jesús (2013)We discuss the existence of breathers and lower bounds on their power, in nonlinear Schrödinger lattices with nonlinear ...
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Artículo
Breathers in a system with helicity and dipole interaction
Sánchez-Rey, Bernardo; Archilla, Juan F. R.; Palmero Acebedo, Faustino; Romero Romero, Francisco (American Physical Society, 2002)Recent papers that have studied variants of the Peyrard-Bishop model for DNA, have taken into account the long range ...
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Ponencia
Breathers in FPU systems, near and far from the phonon band
Sánchez-Rey, Bernardo; Archilla, Juan F. R.; James, Guillaume; Cuevas-Maraver, Jesús (World Scientific, 2003) -
Artículo
Breathers in inhomogeneous nonlinear lattices : an analysis via centre manifold reduction
James, Guillaume; Sánchez-Rey, Bernardo; Cuevas-Maraver, Jesús (2009)We consider an infinite chain of particles linearly coupled to their nearest neighbors and subject to an anharmonic local ...
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Artículo
Bright and dark breathers in Fermi-Pasta-Ulam lattices
Sánchez-Rey, Bernardo; James, Guillaume; Cuevas-Maraver, Jesús; Archilla, Juan F. R. (2004)In this paper we study the existence and linear stability of bright and dark breathers in one-dimensional FPU lattices. ...
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Capítulo de Libro
Classical and quantum nonlinear localized excitations in discrete systems
Romero Romero, Francisco; Archilla, Juan F. R.; Palmero Acebedo, Faustino; Sánchez-Rey, Bernardo; Álvarez Chillida, María Azucena; Cuevas-Maraver, Jesús; Romero Romero, José María (Transworld Research Network, 2005)Discrete breathers, or intrinsic localized modes, are spatially localized, time–periodic, nonlinear excitations that can ...
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Artículo
Collective coordinates theory for discrete soliton ratchets in the sine-Gordon model
Sánchez-Rey, Bernardo; Quintero, Niurka R.; Cuevas-Maraver, Jesús; Alejo, Miguel A. (American Physical Society, 2014)A collective coordinate theory is developed for soliton ratchets in the damped discrete sine-Gordon model driven by a ...
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Artículo
Comment on “Soliton ratchets induced by excitation of internal modes”
Quintero, Niurka R.; Sánchez-Rey, Bernardo; Casado Pascual, Jesús (2005)Very recently Willis et al. [Phys. Rev. E 69, 056612 (2004)] have used a collective variable theory to explain the appearance ...
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Artículo
Demonstration of the stability or instability of multibreathers at low coupling
Archilla, Juan F. R.; Cuevas-Maraver, Jesús; Sánchez-Rey, Bernardo; Romero Romero, Francisco (2003)Whereas there exists a mathematical proof for one-site breathers stability, and an unpublished one for two-site breathers, ...
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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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Trabajo Fin de Grado
Estudio del efecto de la fricción en el movimiento de proyectiles y osciladores
García Luna, Manuel Jesús (2021)El rozamiento es un fenómeno que si bien en la vida diaria pasa desapercibido, en la ingeniería es crucial. Desde elevar ...
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Artículo
Exact numerical solutions for dark waves on the discrete nonlinear Schrödinger equation
Sánchez-Rey, Bernardo; Johansson, Magnus (American Physical Society, 2005)In this paper we study numerically existence and stability of exact dark waves on the (nonintegrable) discrete nonlinear ...
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Artículo
Exact stationary solutions of the parametrically driven and damped nonlinear Dirac equation
Quintero, Niurka R.; Sánchez-Rey, Bernardo (AIP Publishing, 2019)Two exact stationary soliton solutions are found in the parametrically driven and damped nonlinear Dirac equation. The ...
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Tesis Doctoral
Fenómenos dinámicos en modelos sencillos controlados por barreras entrópicas
Sánchez-Rey, Bernardo (1997)La organización de esta Memoria es la siguiente. En el Capítulo 2 presentamos una revisión somera de las principales ...
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Artículo
Glassy behavior in a simple model with entropy barriers
Prados Montaño, Antonio; Brey Abalo, José Javier; Sánchez-Rey, Bernardo (American Physical Society, 1997)We study the dynamical behavior of a system with a variable number of particles n. The empty state n=0 is the ground state, ...
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Artículo
Hysteresis in vibrated granular media
Prados Montaño, Antonio; Brey Abalo, José Javier; Sánchez-Rey, Bernardo (Elsevier, 2000)Some general dynamical properties of models for compaction of granular media based on master equations are analyzed. In ...