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Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 6: Correlation dynamics in plasmas and clusters II

A 6.6: Vortrag

Montag, 12. März 2012, 16:00–16:15, V57.01

Multiscale Approach to Strongly Correlated Two-component Quantum Plasmas in Nonequilibrium — •Michael Bonitz1, Patrick Ludwig1, and James W. Dufty21Universität Kiel — 2University of Florida

A key problem in the description of nonideal, multi-component plasmas is the drastic difference in the r,t-scales which prohibits first-principle simulations, in particular in nonequilibrium. We, therefore, develop a multiscale approach for dense quantum plasmas such as partially ionized Warm Dense Matter, where a full dynamic treatment of the pair correlations of the heavy particles is crucial. To this end the ions are treated exactly by classical Langevin Dynamcis simulations, whereas the electrons are treated fully quantum-mechanically on the basis of a quantum kinetic equation. The coupling of the two is performed in linear response and fully includes the dynamical screening of the ion-ion interaction on the basis of a nonequilibrium extension of the Mermin formula extending our recent results [1,2].
[1] P. Ludwig, M. Bonitz, H. Kählert, and J.W. Dufty, J. Phys. Conf. Series 220, 012003 (2010) [2] P. Ludwig, H. Kählert, and M. Bonitz, submitted for publication in Plasma Physics and Controlled Fusion (2011)

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