Collective excitations of strongly coupled bilayer charged Bose liquids in the third-frequency-moment sum rule
buir.contributor.author | Tanatar, Bilal | |
buir.contributor.orcid | Tanatar, Bilal|0000-0002-5246-0119 | |
dc.citation.epage | 115324-6 | en_US |
dc.citation.issueNumber | 11 | en_US |
dc.citation.spage | 115324-1 | en_US |
dc.citation.volumeNumber | 78 | en_US |
dc.contributor.author | Tas, M. | en_US |
dc.contributor.author | Tanatar, Bilal | en_US |
dc.date.accessioned | 2016-02-08T10:07:40Z | |
dc.date.available | 2016-02-08T10:07:40Z | |
dc.date.issued | 2008 | en_US |
dc.department | Department of Physics | en_US |
dc.description.abstract | We calculate the collective excitation modes of strongly coupled bilayer charged Bose systems. We employ the dielectric matrix formulation to study the correlation effects within the random-phase approximation (RPA), the self consistent field approximation Singwi, Tosi, Land, and Sjölander (STLS), and the quasilocalized charge approximation (QLCA), which satisfies the third-frequency-moment (〈ω3〉) sum rule. We find that the QLCA predicts a long-wavelength correlation-induced energy gap in the out-of-phase plasmon mode, similar to the situation in electronic bilayer systems. The energy gap and the plasmon density of states are studied as a function of interlayer separation and coupling parameter rs. The results should be helpful for experimental investigations. | en_US |
dc.identifier.doi | 10.1103/PhysRevB.78.115324 | en_US |
dc.identifier.issn | 1098-0121 | |
dc.identifier.uri | http://hdl.handle.net/11693/23002 | |
dc.language.iso | English | en_US |
dc.publisher | The American Physical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevB.78.115324 | en_US |
dc.source.title | Physical Review B - Condensed Matter and Materials Physics | en_US |
dc.title | Collective excitations of strongly coupled bilayer charged Bose liquids in the third-frequency-moment sum rule | en_US |
dc.type | Article | en_US |
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