44 citations · 153 across the 6 of their papers we have counts for
6 papers
Classical and quantum nonlinear localized excitations in discrete systems
F. R. Romero, J. F. R. Archilla, F. Palmero +4
Discrete breathers, or intrinsic localized modes, are spatially localized, time--periodic, nonlinear excitations that can exist and propagate in systems of coupled dynamical units.…
Effect of the Introduction of Impurities on the Stability Properties of Multibreathers at Low Coupling
J. Cuevas, J. F. R. Archilla, F. R. Romero
sing a theorem dubbed the {\em Multibreather Stabiliy Theorem} [Physica D 180 (2003) 235-255] we have obtained the stability properties of multibreathers in systems of coupled osci…
Moving breathers in bent DNA with realistic parameters
J. Cuevas, E. B. Starikov, J. F. R. Archilla +1
Recent papers have considered moving breathers (MBs) in DNA models including long range interaction due to the dipole moments of the hydrogen bonds. We have recalculated the value…
Interaction of moving discrete breathers with vacancies
J. Cuevas, J. F. R. Archilla, B. Sánchez-Rey +1
In this paper a Frenkel--Kontorova model with a nonlinear interaction potential is used to describe a vacancy defect in a crystal. According to recent numerical results [Cuevas et…
Influence of moving breathers on vacancies migration
J. Cuevas, C. Katerji, J. F. R. Archilla +2
A vacancy defect is described by a Frenkel--Kontorova model with a discommensuration. This vacancy can migrate when interacts with a moving breather. We establish that the width of…
Bright and dark breathers in Fermi-Pasta-Ulam lattices
B. Sánchez-Rey, G. James, J. Cuevas +1
In this paper we study the existence and linear stability of bright and dark breathers in one-dimensional FPU lattices. On the one hand, we test the range of validity of a recent b…