Excitation of Quantized Longitudinal Electric Waves in a Degenerate Fermi Gas

Details Excitation of Quantized Longitudinal Electric Waves in a Degenerate Fermi Gas Excitation of Quantized Longitudinal Electric Waves in a Degenerate Fermi Gas

2010-05-19

arxiv.org/abs/1005.3408v1

Physics

Plasma Physics

Submitted to Physical Review E

Scientific paper

The system of electron beam - degenerate Fermi gas in a magnetic field is investigated. Instabilities of the quantized longitudinal electric waves are studied by a newly derived dispersion equation. Novel branches of longitudinal waves are found, which have no analogies without the Landau quantization. Growth rates of these new modes are obtained. The excitation of the zero sound by an electron beam is discussed and found that the quantization of the energy of electrons imposes a new condition. Furthermore, the excitation of Bogolyubov's type of spectrum by a strong electric field is considered.

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