title: Effect of strong coupling on the dust acoustic instability.
abstract: In a plasma containing charged dust grains, the dust acoustic instability (DAI) can be driven by ions streaming through the dust with speed less than the ion thermal speed. When the dust is strongly coupled in the liquid phase, the dispersion relation of the dust acoustic modes changes in a way that leads to an enhancement of the growth rate of the DAI. In this paper, we show how strong coupling enhances the DAI growth rate and consider application to microgravity experiments where subthermal ion flows are in general possible.
authors.affiliation: Department of Electrical and Computer Engineering, University of California San Diego, La Jolla, California, 92093, USA.
authors.forename: M
authors.initials: M
authors.lastname: Rosenberg
authors.affiliation: Department of Physics, Boston College, Chestnut Hill, Massachusetts, 02467, USA.
authors.forename: G J
authors.initials: GJ
authors.lastname: Kalman
authors.affiliation: Institute for Solid State Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, H-1525 Budapest, P.O. Box 49, Hungary.
authors.forename: P
authors.initials: P
authors.lastname: Hartmann
authors.affiliation: Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa,52242, USA.
authors.forename: J
authors.initials: J
authors.lastname: Goree