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Exchange effects in plasmas: The case of low-frequency dynamics
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2013 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 88, no 6, 063105- p.Article in journal (Refereed) Published
Abstract [en]

Recently, there has been a surge of interest in nonequilibrium collective quantum models, where particle dispersion and spin are examples of effects taken into account. Here, we derive a kinetic plasma model containing fermion exchange effects. Exchange interactions are of great importance in many systems and have no classical analogy. Our model therefore constitutes a possible probe of collective quantum phenomena in other regimes. As an example, we consider the influence of the exchange effect on low-frequency dynamics, in particular ion-acoustic waves. Comparisons to related computational techniques are given and the differences are highlighted. Furthermore, we discuss the applicability of our model, its limitations, and possible extensions.

Place, publisher, year, edition, pages
American Physical Society , 2013. Vol. 88, no 6, 063105- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-84775DOI: 10.1103/PhysRevE.88.063105ISI: 000328695100007OAI: oai:DiVA.org:umu-84775DiVA: diva2:691520
Available from: 2014-01-28 Created: 2014-01-20 Last updated: 2017-12-06Bibliographically approved

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Zamanian, JensMarklund, MattiasBrodin, Gert
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