Publication
Title
Dispersion relations for circular single and double dusty plasma chains
Author
Abstract
We derive dispersion relations for a system of identical particles confined in a two-dimensional annular harmonic well and which interact through a Yukawa potential, e.g., a dusty plasma ring. When the particles are in a single chain (i.e., a one-dimensional ring), we find a longitudinal acoustic mode and a transverse optical mode which show approximate agreement with the dispersion relation for a straight configuration for large radii of the ring. When the radius decreases, the dispersion relations modify: there appears an anticrossing of the modes near the crossing point resulting in a frequency gap between the lower and upper branches of the modified dispersion relations. For the double chain (i.e., a two-dimensional zigzag configuration), the dispersion relation has four branches: longitudinal acoustic and optical and transverse acoustic and optical.
Language
English
Source (journal)
Physics of plasmas. - Woodbury, N.Y.
Publication
Woodbury, N.Y. : 2011
ISSN
1070-664X
Volume/pages
18:10(2011), p. 103709,1-103709,10
Article Reference
103709
ISI
000296529600090
Medium
E-only publicatie
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 07.02.2012
Last edited 14.07.2017
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