Wave propagation and “Landau-type” damping from Bohm potential

From Bohm's interpretation of quantum mechanics, a quantum kinetic equation (QKE) can be derived. It is found that waves propagate in force-free gases of non interacting particles, only due to Bohm potential. In the present article the existence of Landau damping in such propagations is investi...

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Bibliographic Details
Published in:Europhysics letters 2008-04, Vol.82 (2), p.20002-20002 (6)
Main Authors: Mostacci, D., Molinari, V., Pizzio, F.
Format: Article
Language:English
Subjects:
05.60.Gg
51.10.+y
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Summary:From Bohm's interpretation of quantum mechanics, a quantum kinetic equation (QKE) can be derived. It is found that waves propagate in force-free gases of non interacting particles, only due to Bohm potential. In the present article the existence of Landau damping in such propagations is investigated. It is found that the Bohm potential alone gives indeed rise to a damping entirely analogous to the classical Landau damping, both for bosons and for weakly degenerate fermions.
ISSN:0295-5075
1286-4854
DOI:10.1209/0295-5075/82/20002