The transition from the classical to the quantum regime in nonlinear Landau damping

G. Brodin; J. Zamanian; J. T. Mendonca

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arXiv · 1505.01381

The transition from the classical to the quantum regime in nonlinear Landau damping

G. Brodin·J. Zamanian·J. T. Mendonca

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Abstract

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.

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G. Brodin, J. Zamanian, J. T. Mendonca. 2015-05-05. The transition from the classical to the quantum regime in nonlinear Landau damping. https://arxiv.org/abs/1505.01381

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