Existence of multisite intrinsic localized modes in one-dimensional Debye crystals

V. Koukouloyannis, I. Kourakis

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The existence of highly localized multisite oscillatory structures (discrete multibreathers) in a nonlinear Klein-Gordon chain which is characterized by an inverse dispersion law is proven and their linear stability is investigated. The results are applied in the description of vertical (transverse, off-plane) dust grain motion in dusty plasma crystals, by taking into account the lattice discreteness and the sheath electric and/or magnetic field nonlinearity. Explicit values from experimental plasma discharge experiments are considered. The possibility for the occurrence of multibreathers associated with vertical charged dust grain motion in strongly coupled dusty plasmas (dust crystals) is thus established. From a fundamental point of view, this study aims at providing a rigorous investigation of the existence of intrinsic localized modes in Debye crystals and/or dusty plasma crystals and, in fact, suggesting those lattices as model systems for the study of fundamental crystal properties.

Original languageBritish English
Article number016402
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number1
StatePublished - 9 Jul 2007


Dive into the research topics of 'Existence of multisite intrinsic localized modes in one-dimensional Debye crystals'. Together they form a unique fingerprint.

Cite this