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The transition from the classical to the quantum regime in nonlinear Landau damping
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2015 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. 90, no 6, 068020Article in journal, Editorial material (Other academic) Published
Abstract [en]

Starting from the Wigner–Moyal equation coupled to Poisson’s equation, a simplified set of equations describing nonlinear Landau damping of Langmuir waves is derived. This system is studied numerically, with a particular focus on the transition from the classical to the quantum regime. In the quantum regime several new features are found. This includes a quantum modified bounce frequency, and the discovery that bounce-like amplitude oscillations can take place even in the absence of trapped particles. The implications of our results are discussed.

Place, publisher, year, edition, pages
2015. Vol. 90, no 6, 068020
Keyword [en]
quantum plasma, wave-particle interaction, bounce oscillations
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-107092DOI: 10.1088/0031-8949/90/6/068020ISI: 000357481800053OAI: oai:DiVA.org:umu-107092DiVA: diva2:856049
Available from: 2015-09-23 Created: 2015-08-18 Last updated: 2017-12-01Bibliographically approved

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