title: Collective modes in strongly correlated yukawa liquids: waves in dusty plasmas.
abstract: We determine the collective mode structure of a strongly correlated Yukawa fluid, with the purpose of analyzing wave propagation in a strongly coupled dusty plasma. We identify a longitudinal plasmon and a transverse shear mode. The dispersion is characterized by a low- k acoustic behavior, a frequency maximum well below the plasma frequency, and a high- k merging of the two modes around the Einstein frequency of localized oscillations. The damping effect of collisions between neutrals and dust grains is estimated.
authors.affiliation: Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, USA.
authors.forename: G
authors.initials: G
authors.lastname: Kalman
authors.forename: M
authors.initials: M
authors.lastname: Rosenberg
authors.forename: H E
authors.initials: HE
authors.lastname: DeWitt