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P: Fachverband Plasmaphysik

P 14: Poster: Komplexe und Staubige Plasmen

P 14.13: Poster

Donnerstag, 28. Februar 2013, 14:00–16:00, Poster EG

Dust particle wakes in flowing plasmas: one-to-one comparison of linear-response theory with particle-in-cell simulations — •Patrick Ludwig¹, Michael Bonitz¹, and Ian H. Hutchinson² — ¹Inst. für Theo. Phys. und Astrophysik, CAU, Kiel — ²MIT, Cambridge, Massachusetts, USA

Extending the controversial discussion on the existence of subsonic plasma wakes in a stationary flowing plasma [1,2], we present results of a high quality one-to-one comparison of the wake potentials computed by (i) linearized-response kinetic theory, and (ii) first principle particle-in-cell simulations [3]. The comparison comprises a broad range of Mach numbers, different electron-to-ion temperature ratios, and applies to collisionless and collisional plasmas as well.
I. H. Hutchinson, Phys. Rev. E 85, 066409 (2012)
O. Arp, J. Goree, and A. Piel, Phys. Rev. E 85 046409 (2012)
D. Block, J. Carstensen, P. Ludwig et al., Contrib. Plasma Phys. 85, 804 (2012)