title: Pulse propagation in randomly decorated chains.
abstract: We study pulse propagation in one-dimensional chains of spherical granules decorated with small randomly sized granules placed between bigger monodisperse ones. Such "designer chains" are of interest in efforts to control the behavior of the pulse so as to optimize its propagation or attenuation, depending on the desired application. We show that a recently proposed effective description of simple decorated chains can be extended to predict pulse properties in chains decorated with small granules of randomly chosen radii. Furthermore, we also show that the binary-collision approximation can again be used to provide analytic results for this system.
authors.affiliation: Department of Chemistry and Biochemistry, University of California-San Diego, La Jolla, California 92093-0340, USA.
authors.forename: Upendra
authors.initials: U
authors.lastname: Harbola
authors.forename: Alexandre
authors.initials: A
authors.lastname: Rosas
authors.forename: Aldo H
authors.initials: AH
authors.lastname: Romero
authors.forename: Katja
authors.initials: K
authors.lastname: Lindenberg
mesh_terms: D003102:Colloids / Q000737:chemistry*; D003198:Computer Simulation; D008956:Models, Chemical; D008958:Models, Molecular
chemical_list: D003102:Colloids