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Publications (3)4.63 Total impact

  • S G Amiranashvili, N G Gusein-zade, V N Tsytovich
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    ABSTRACT: A monolayer dusty crystal can be observed in the glow discharge. In particular, a small number of dusty grains form simple atom-like plane clusters. Stability and oscillations of the polygonal cluster are considered. For the simplest stable clusters normal displacements and frequencies are found for an arbitrary form of mutual interaction. The measurement of these modes can help to give in detail the form of the potential function.
    Physical Review E 08/2001; 64(1 Pt 2):016407. · 2.31 Impact Factor
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    A M Ignatov, S G Amiranashvili
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    ABSTRACT: It is shown that inhomogeneous heating of the dust grain by ion flow in a glow discharge results in a photophoresislike force. According to our estimations, this radiometric force can be comparably-valued with the ion-drag force under the conditions of microgravity dusty plasma experiments.
    Physical Review E 02/2001; 63(1 Pt 2):017402. · 2.31 Impact Factor
  • SG Amiranashvili
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    ABSTRACT: A uniform density ellipsoid is an equilibrium state of a low-energy non-neutral plasma confined in a harmonic trap. Normal modes of this plasma can be detected; they provide a nondestructive diagnostic tool. The low-order quadrupole modes are particularly simple. They can be calculated analytically even in a nonlinear regime. In general, nonlinear coupling leads to the complicated stochastic dynamics. In special cases, regular solutions can be found. It is shown that the behavior of an elongated ellipsoid oriented along the trap symmetry axis is nearly integrable. The study results in simple analytical expressions for frequencies and ellipsoid semiaxes.
    Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 08/2000; 62(1 Pt B):1215-23.