title: Mode-coupling instability in a fluid two-dimensional complex plasma.
abstract: A theory of the mode-coupling instability (MCI) in a fluid two-dimensional complex plasma is developed. In analogy to the point-wake model of the wake-mediated interactions commonly used to describe MCI in two-dimensional crystals, the layer-wake model is employed for fluids. It is demonstrated that the wake-induced coupling of wave modes occurs in both crystalline and fluid complex plasmas, but the confinement-density threshold, which determines the MCI onset in crystals, virtually disappears in fluids. The theory shows excellent qualitative agreement with available experiments and provides certain predictions to be verified.
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, 85741 Garching, Germany.
authors.forename: A V
authors.initials: AV
authors.lastname: Ivlev
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, 85741 Garching, Germany.
authors.forename: S K
authors.initials: SK
authors.lastname: Zhdanov
authors.affiliation: Department of Astronomy, University of Maryland, College Park, Maryland 20740, USA.
authors.forename: M
authors.initials: M
authors.lastname: Lampe
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, 85741 Garching, Germany.
authors.forename: G E
authors.initials: GE
authors.lastname: Morfill