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Collective excitations and screening properties of a condensed charged Bose gas

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journal contribution
posted on 27.02.2009 by A.S. Alexandrov, W.H. Beere
The Bogoliubov–de Gennes (BdG) type equations are derived for the Coulomb Bose gas describing the electrodynamics of charged bosons. The gauge invariant dielectric response function and collective excitations of a charged Bose gas at T=0 are found. We find a plasmon branch which is the same as the single-particle Bogoliubov spectrum in agreement with the textbook result. The superconducting properties of the charged Bose gas are verified. A gauge-invariant formalism for calculating the response of the supracondensate particles is proposed.

History

School

  • Science

Department

  • Physics

Citation

ALEXANDROV, A.S. and BEERE, W.H., 1995. Collective excitations and screening properties of a condensed charged Bose gas. Physical Review B, 51 (9), pp. 5887-5891

Publisher

© American Physical Society

Version

VoR (Version of Record)

Publication date

1995

Notes

This article was published in the journal Physical Review B [© American Physical Society]. The definitive version is available at: http://link.aps.org/doi/10.1103/PhysRevB.51.5887

ISSN

1098-0121

Language

en

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