44 citations · 153 across the 6 of their papers we have counts for
3 papers · 1 filter
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…