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dc.contributor.authorSenger, R. T.en_US
dc.contributor.authorKozal, B.en_US
dc.contributor.authorChatterjee, A.en_US
dc.contributor.authorErçelebi, A.en_US
dc.date.accessioned2016-02-08T09:55:26Z
dc.date.available2016-02-08T09:55:26Z
dc.date.issued2010en_US
dc.identifier.issn1434-6028
dc.identifier.urihttp://hdl.handle.net/11693/22091
dc.description.abstractThe bipolaronic ground state of two electrons in a spherical quantum dot or a quantum wire with parabolic boundaries is studied in the strong electron-phonon coupling regime. We introduce a variational wave function that can conveniently conform to represent alternative ground state configurations of the two electrons, namely, the bipolaronic bound state, the state of two individual polarons, and two nearby interacting polarons confined by the external potential. In the bipolaron state the electrons are found to be separated by a finite distance about a polaron size. We present the formation and stability criteria of bipolaronic phase in confined media. It is shown that the quantum dot confinement extends the domain of stability of the bipolaronic bound state of two electrons as compared to the bulk geometry, whereas the quantum wire geometry aggravates the formation of stable bipolarons.en_US
dc.language.isoEnglishen_US
dc.source.titleEuropean Physical Journal Ben_US
dc.relation.isversionofhttps://doi.org/10.1140/epjb/e2010-10517-xen_US
dc.subjectBipolaron stateen_US
dc.subjectBipolaronic phaseen_US
dc.subjectBipolaronsen_US
dc.subjectBound stateen_US
dc.subjectDomain of stabilityen_US
dc.subjectElectron phonon couplingsen_US
dc.subjectExternal potentialen_US
dc.subjectFinite distanceen_US
dc.subjectGround state configurationen_US
dc.subjectHartree-Fock approximationsen_US
dc.subjectQuantum Doten_US
dc.subjectQuantum-dot confinementsen_US
dc.subjectSpherical quantum doten_US
dc.subjectElectronsen_US
dc.subjectGround stateen_US
dc.subjectHartree approximationen_US
dc.subjectNanowiresen_US
dc.subjectOptical waveguidesen_US
dc.subjectPhononsen_US
dc.subjectPolaronsen_US
dc.subjectSemiconductor quantum dotsen_US
dc.subjectSemiconductor quantum wiresen_US
dc.subjectWave functionsen_US
dc.subjectWireen_US
dc.subjectStability criteriaen_US
dc.titleHartree-Fock approximation of bipolaron state in quantum dots and wiresen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.citation.spage525en_US
dc.citation.epage529en_US
dc.citation.volumeNumber78en_US
dc.citation.issueNumber4en_US
dc.identifier.doi10.1140/epjb/e2010-10517-xen_US
dc.publisherSpringeren_US


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