Forced mode-coupling instability in two-dimensional complex plasmasReportar como inadecuado

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1 PIIM - Physique des interactions ioniques et moléculaires 2 MPE - Max-Planck-Institut für Extraterrestrische Physik 3 DLR Oberpfaffenhofen

Abstract : It is demonstrated experimentally that the wake-mediated resonant coupling of the in-plane and out-of-plane collective motion in two-dimensional plasma crystals can be induced by applying various types of external forcing. When the forcing is sufficiently strong, it can trigger the mode-coupling instability leading to the melting of the crystalline monolayer. The experimental observations are supported by numerical analysis of the forced collective dynamics of particles with the wake-mediated interactions. The reported results show the universal nature of the wake-mediated mode coupling also occurring for the - forced - wave modes and confirm characteristic features of the mode-coupling instability predicted theoretically by Ivlev et al. Phys. Rev. Lett. 113, 135002 2014.

Autor: L Couëdel - T. B. Röcker - S. K. Zhdanov - V. Nosenko - G. E. Morfill - A. V. Ivlev -



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