Velocity Autocorrelation Functions and Diffusion Coefficient of Dusty Component in Complex Plasmas |
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| Authors: | K N Dzhumagulova T S Ramazanov R U Masheeva |
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| Institution: | IETP, Al Farabi Kazakh National University, al Farabi 71, Almaty, 050038, Kazakhstan |
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| Abstract: | The velocity autocorrelation functions of dust particles were calculated by the Langevin dynamics. It was indicated that their oscillations decay more rapidly with increase in the friction parameters. The dependencies of the dust particles diffusion coefficient on the friction coefficient at the different values of various parameters were obtained by the Green‐Kubo relation and mean square displacements. The validity of the Einstein relation at small values of coupling parameter was shown (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | Langevin dynamics dusty plasma dust particles diffusion velocity autocorrelation function |
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