Non-linear dynamics of semiconductor superlattices

LL Bonilla, HT Grahn - Reports on Progress in Physics, 2005 - iopscience.iop.org
In the last decade, non-linear dynamical transport in semiconductor superlattices (SLs) has
witnessed significant progress in theoretical descriptions as well as in experimentally …

Theory of nonlinear charge transport, wave propagation, and self-oscillations in semiconductor superlattices

LL Bonilla - Journal of Physics: Condensed Matter, 2002 - iopscience.iop.org
Nonlinear charge transport in semiconductor superlattices under strong electric fields
parallel to the growth direction results in rich dynamical behaviour including the formation of …

Depinning transitions in discrete reaction-diffusion equations

A Carpio, LL Bonilla - SIAM Journal on Applied Mathematics, 2003 - SIAM
We consider spatially discrete bistable reaction-diffusion equations that admit wave front
solutions. Depending on the parameters involved, such wave fronts appear to be pinned or …

Theory of force-extension curves for modular proteins and DNA hairpins

LL Bonilla, A Carpio, A Prados - Physical Review E, 2015 - APS
We study a model describing the force-extension curves of modular proteins, nucleic acids,
and other biomolecules made out of several single units or modules. At a mesoscopic level …

Oscillatory wave fronts in chains of coupled nonlinear oscillators

A Carpio, LL Bonilla - Physical Review E, 2003 - APS
Wave front pinning and propagation in damped chains of coupled oscillators are studied.
There are two important thresholds for an applied constant stress F: for| F|< F cd (dynamic …

Edge dislocations in crystal structures considered as traveling waves in discrete models

A Carpio, LL Bonilla - Physical Review Letters, 2003 - APS
The static stress needed to depin a 2D edge dislocation, the lower dynamic stress needed to
keep it moving, its velocity, and displacement vector profile are calculated from first …

Pulse propagation in discrete systems of coupled excitable cells

A Carpio, LL Bonilla - SIAM Journal on Applied Mathematics, 2003 - SIAM
Propagation of pulses in myelinated fibers may be described by appropriate solutions of
spatially discrete FitzHugh--Nagumo systems. In these systems, propagation failure may …

Spatial dynamics of the lattice Lotka–Volterra competition system in a shifting habitat

Y Meng, Z Yu, S Zhang - Nonlinear Analysis: Real World Applications, 2021 - Elsevier
In this paper, we study the spatial dynamics of the lattice Lotka–Volterra competition system
in a shifting habitat. First, we discuss the corresponding ranges of the environmental …

Wave propagation and its stability for a class of discrete diffusion systems

Z Yu, CH Hsu - Zeitschrift für angewandte Mathematik und Physik, 2020 - Springer
This paper is devoted to investigating the wave propagation and its stability for a class of two-
component discrete diffusive systems. We first establish the existence of positive monotone …

Effects of disorder on the wave front depinning transition in spatially discrete systems

A Carpio, LL Bonilla, A Luzón - Physical Review E, 2002 - APS
Pinning and depinning of wave fronts are ubiquitous features of spatially discrete systems
describing a host of phenomena in physics, biology, etc. A large class of discrete systems is …