Dispersion relations of Yukawa fluids at weak and moderate coupling
| Autor: | Sergey A. Khrapak, L. Couëdel |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Yukawa fluids
weakly coupled Yukawa systems FOS: Physical sciences Kinetic term Condensed Matter - Soft Condensed Matter Kinetic energy 01 natural sciences 010305 fluids & plasmas Molecular dynamics Dispersion relation 0103 physical sciences Dispersion (optics) Gruppe Komplexe Plasmen complex (dusty) plasma Statistical physics Yukawa gases 010306 general physics collective modes in Yukawa fluids Coupling Physics Bulk modulus Fluid Dynamics (physics.flu-dyn) Yukawa potential dust acoustic waves Physics - Fluid Dynamics Physics - Plasma Physics Plasma Physics (physics.plasm-ph) Soft Condensed Matter (cond-mat.soft) waves in dusty plasmas |
| Zdroj: | Physical review. E. 102(3-1) |
| ISSN: | 2470-0053 |
| Popis: | In this paper we compare different theoretical approaches to describe the dispersion of collective modes in Yukawa fluids when the inter-particle coupling is relatively weak, so that kinetic and potential contributions to the dispersion relation compete. Thorough comparison with the results from molecular dymamics simulation allows us to conclude that in the regime investigated the best description is provided by the sum of the generalized excess bulk modulus and the Bohm-Gross kinetic term. Comment: 9 pages, 7 figures |
| Databáze: | OpenAIRE |
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