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Open Physics

formerly Central European Journal of Physics

Editor-in-Chief: Seidel, Sally

Managing Editor: Lesna-Szreter, Paulina

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Volume 8, Issue 5

Issues

Volume 13 (2015)

Effect of Bohm potential on a charged gas

Domiziano Mostacci
  • Laboratorio di Ingegneria Nucleare di Montecuccolino Alma Mater Studiorum, Università di Bologna, Via dei Colli 16, I-40136, Bologna, Italy
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/ Vincenzo Molinari
  • Laboratorio di Ingegneria Nucleare di Montecuccolino Alma Mater Studiorum, Università di Bologna, Via dei Colli 16, I-40136, Bologna, Italy
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/ Francesco Pizzio
  • Laboratorio di Ingegneria Nucleare di Montecuccolino Alma Mater Studiorum, Università di Bologna, Via dei Colli 16, I-40136, Bologna, Italy
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Published Online: 2010-07-22 | DOI: https://doi.org/10.2478/s11534-009-0160-3

Abstract

Bohm’s interpretation of Quantum Mechanics leads to the derivation of a Quantum Kinetic Equation (QKE): in the present work, propagation of waves in charged quantum gases is investigated starting from this QKE. Dispersion relations are derived for fully and weakly degenerate fermions and bosons (for the latter above critical temperature) and the differences discussed. Use of a kinetic equation permits investigation of “Landau-type” damping: it is found that the presence of damping in fermion gases is dependent upon the degree of degeneracy, whereas it is always present in boson gases. In fully degenerate fermions a phenomenon appears that is akin to the “zero sound” propagation.

Keywords: Bohm potential; quantum kinetic equation; wave propagation in quantum plasmas; dispersion relation; Landau damping

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About the article

Published Online: 2010-07-22

Published in Print: 2010-10-01


Citation Information: Open Physics, Volume 8, Issue 5, Pages 709–716, ISSN (Online) 2391-5471, DOI: https://doi.org/10.2478/s11534-009-0160-3.

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© 2009 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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