Collective excitations and screening properties of a condensed charged Bose gas
Open Access
- 1 March 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 51 (9) , 5887-5891
- https://doi.org/10.1103/physrevb.51.5887
Abstract
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.Keywords
This publication has 11 references indexed in Scilit:
- Do pairs exist aboveTc?Superconductor Science and Technology, 1993
- Transport properties of the disordered charged bose condensate in two dimensionsZeitschrift für Physik B Condensed Matter, 1991
- Dilute Bose gas in two dimensionsPhysical Review B, 1988
- Charged Bose gas in two dimensions. Zero magnetic fieldPhysical Review B, 1979
- Zero-temperature dielectric response of the charged Bose gas in a uniform magnetic fieldPhysical Review B, 1976
- Dielectric response of the charged Bose gas in the random-phase approximationPhysical Review B, 1975
- Critical behavior of a charged Bose gasJournal of Low Temperature Physics, 1974
- On the theory of the superfluidity of two- and one-dimensional bose systemsTheoretical and Mathematical Physics, 1972
- Linear response function for quantum mechanical systemThe European Physical Journal A, 1963
- Charged Boson GasPhysical Review B, 1961