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dc.contributor.author |
Kashirina, N.I. |
|
dc.date.accessioned |
2017-05-30T14:13:16Z |
|
dc.date.available |
2017-05-30T14:13:16Z |
|
dc.date.issued |
2014 |
|
dc.identifier.citation |
Pekar bipolaron and the virial theorem (arbitrary coupling) / N.I. Kashirina // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2014. — Т. 17, № 3. — С.260-267. — Бібліогр.: 30 назв. — англ. |
uk_UA |
dc.identifier.issn |
1560-8034 |
|
dc.identifier.other |
PACS 71.38, 71.38.+i, 73.20.D, 74.80.D |
|
dc.identifier.uri |
http://dspace.nbuv.gov.ua/handle/123456789/118494 |
|
dc.description.abstract |
The work is devoted to issues related with implementation of the virial
theorem for one-center bipolaron. The virial theorem expressions have been obtained for
an electron system with Coulomb interactions in the phonon field. It is shown that for the
bipolaron functional (one-center configuration) virial theorem holds for arbitrary
electron-phonon coupling. As a specific example of the virial theorem for one-center
bipolaron configuration, the author adduces numerical calculations of the energy of the
ground state and the various contributions (kinetic energy, electron-phonon interaction,
electron energy, phonon energy) into the energy of bipolaron, performed within the
framework of Buimistrov-Pekar method. It is shown that the virial theorem is fulfilled
with high accuracy for the two-electron systems with Coulomb interactions for an
arbitrary value electron-phonon coupling. The necessary condition for formation of a
bipolaron stable state is accounting electron correlations associated with the direct
dependence of the trial electron wave function of the system from the interelectron
distance. |
uk_UA |
dc.description.sponsorship |
The author wishes to express her appreciation of
valuable advice and encouragement afforded by
Professor V.D. Lakhno and Pr
ofessor E.A. Pashitskii. |
uk_UA |
dc.language.iso |
en |
uk_UA |
dc.publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
uk_UA |
dc.relation.ispartof |
Semiconductor Physics Quantum Electronics & Optoelectronics |
|
dc.title |
Pekar bipolaron and the virial theorem (arbitrary coupling) |
uk_UA |
dc.type |
Article |
uk_UA |
dc.status |
published earlier |
uk_UA |
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