Física Aplicada I: Envíos recientes
Mostrando ítems 821-840 de 890
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Moving breathers in a DNA model with competing short and long range dispersive interactions
(2002)Moving breathers is a means of transmitting information in DNA. We study the existence and properties of moving breathers ...
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Resonances in the dynamics of f 4 kinks perturbed by ac forces
(2000)We study the dynamics of f 4 kinks perturbed by an ac force, both with and without damping. We address this issue by ...
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Existence of internal modes of sine-Gordon kinks [Rapid Communications]
(2000)We study whether or not sine-Gordon kinks exhibit internal modes or ‘‘quasimodes.’’ By considering the response of the ...
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Nonequivalence of phonon modes in the sine-Gordon equation
(2001)We study the resonances in the sine-Gordon equation driven by an ac force using a linear perturbation theory. We show that ...
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Anomalies of ac driven solitary waves with internal modes: Nonparametric resonances induced by parametric forces
(2001)We study the dynamics of kinks in the φ4 model subjected to a parametric ac force, both with and without damping, as a ...
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Soliton ratchets
(2002)The mechanism underlying the soliton ratchet, both in absence and in presence of noise, is investigated. We show the ...
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Using the finite domain remnant of the continuous spectrum to examine integrability: Effect of boundary conditions
(2003)The aim of this work is to propose a method for testing the integrability of a model partial differential (PDE) and/or ...
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Comment on “Soliton ratchets induced by excitation of internal modes”
(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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Analytical approach to soliton ratchets in asymmetric potentials
(2005)We use soliton perturbation theory and collective coordinate ansatz to investigate the mechanism of soliton ratchets in a ...
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Sine-Gordon ratchets with general periodic, additive, and parametric driving forces
(2007)We study the soliton ratchets in the damped sine-Gordon equation with periodic nonsinusoidal, additive, and parametric ...
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Driven and damped double sine-Gordon equation: The influence of internal modes on the soliton ratchet mobility
(2009)This work studies the damped double sine-Gordon equation driven by a biharmonic force, where a parameter λ controls the ...
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Nonlinear Schrödinger equation with spatiotemporal perturbations
(2010)We investigate the dynamics of solitons of the cubic nonlinear Schrödinger equation (NLSE) with the following perturbations: ...
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Generalized traveling-wave method, variational approach, and modified conserved quantities for the perturbed nonlinear Schrödinger equation.
(2010)The generalized traveling wave method (GTWM) is developed for the nonlinear Schrödinger equation (NLSE) with general ...
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Symmetries shape the current in ratchets induced by a biharmonic driving force
(2010-03-23)Equations describing the evolution of particles, solitons, or localized structures, driven by a zero-average, periodic, ...
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Refined empirical stability criterion for nonlinear Schrödinger solitons under spatiotemporal forcing
(2011-08-25)We investigate the dynamics of traveling oscillating solitons of the cubic nonlinear Schrödinger (NLS) equation under an ...
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Forced nonlinear Schrödinger equation with arbitrary nonlinearity
(2012)We consider the nonlinear Schrödinger equation (NLSE) in 1+1 dimension with scalar-scalar self-interaction g2κ+1(ψ☆ψ)κ+1 ...
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Nonlinear Dirac equation solitary waves in external fields
(2012)We consider nonlinear Dirac equations (NLDE's) in the 1+1 dimension with scalar-scalar self-interaction g2κ+1(Ψ¯¯¯Ψ)κ+1 ...
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Nonlinear Schrödinger solitons oscillate under a constant external force
(2013)We investigate the dynamics of solitons of the cubic nonlinear Schrödinger equation with an external time-independent force ...
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Comment on “Ratchet universality in the presence of thermal noise”
(2013)A recent paper [P. J. Martínez and R. Chacón, Phys. Rev. E 87, 062114 (2013)] presents numerical simulations on a system ...
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Time-shift invariance determines the functional shape of the current in dissipative rocking ratchets
(2013)Ratchets are devices that are able to rectify an otherwise oscillatory behavior by exploiting an asymmetry of the system. ...