Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

P: Fachverband Plasmaphysik

P 19: Poster: Theorie und Modellierung

P 19.21: Poster

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

Linear response of strongly correlated confined plasmas — •Hanno Kählert¹, Gabor J. Kalman¹, and Michael Bonitz² — ¹Boston College, Department of Physics, Chestnut Hill, USA — ²Christian-Albrechts-Universität zu Kiel, Institut für Theoretische Physik und Astrophysik

The quasi-localized charge approximation is based on the caging effect in strongly coupled liquids and has been widely applied to homogeneous systems in the past [1]. Here, we investigate the linear response of confined strongly coupled plasmas by applying the theory to inhomogeneous systems in traps. The results should be important for confined dusty plasmas, laser-cooled ions, or ultracold neutral plasmas in the strongly correlated limit. Similar to previous calculations [2], we derive an equation for the fluid displacement field, which requires the density profile and the static pair correlation function of the confined plasma as input parameters. This adds correlation effects to the cold-fluid equations, which we previously used to study the collective modes of a confined Yukawa plasma [3]. We further discuss a possible extension to a kinetic theory based on an extended STLS scheme [4].
K. I. Golden and G. J. Kalman, Phys. Plasmas 7, 14 (2000)
C.-J. Lee and G. J. Kalman, J. Korean Phys. Soc. 58, 448 (2011)
H. Kählert and M. Bonitz, Phys. Rev. E 82, 036407 (2010)
K. S. Singwi et al., Phys. Rev. 176, 589 (1968)
Supported by the DAAD via a postdoctoral fellowship and the DFG via SFB TR24.