Effect of Bohm potential on a charged gas

• Authors: Domiziano Mostacci , Vincenzo Molinari , Francesco Pizzio
• Languages of publication: EN

Abstracts

EN

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

EN

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

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2010
• Volume: 8
• Issue: 5
• Pages: 709-716

Dates

published

1 - 10 - 2010

online

22 - 7 - 2010

Contributors

author

Domiziano Mostacci

• Laboratorio di Ingegneria Nucleare di Montecuccolino Alma Mater Studiorum, Università di Bologna, Via dei Colli 16, I-40136, Bologna, Italy

author

Vincenzo Molinari

• Laboratorio di Ingegneria Nucleare di Montecuccolino Alma Mater Studiorum, Università di Bologna, Via dei Colli 16, I-40136, Bologna, Italy

author

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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Identifiers

DOI

10.2478/s11534-009-0160-3