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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, 13:06 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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