Electronic excitations and correlations in quantum bars
The spectrum of boson fields and two-point correlators are analyzed in a quantum bar system (a superlattice formed by two crossed interacting arrays of quantum wires), with a short-range interwire interaction. The standard bosonization procedure is shown to be valid, within the two-wave approximatio...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2002 |
| Автори: | , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2002
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/130232 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Electronic excitations and correlations in quantum bars / I.Kuzmenko, S.Gredeskul, K.Kikoin, Y.Avishai // Физика низких температур. — 2002. — Т. 28, № 7. — С. 752-762. — Бібліогр.: 17 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862621164569886720 |
|---|---|
| author | Kuzmenko, I. Gredeskul, S. Kikoin, K. Avishai, Y. |
| author_facet | Kuzmenko, I. Gredeskul, S. Kikoin, K. Avishai, Y. |
| citation_txt | Electronic excitations and correlations in quantum bars / I.Kuzmenko, S.Gredeskul, K.Kikoin, Y.Avishai // Физика низких температур. — 2002. — Т. 28, № 7. — С. 752-762. — Бібліогр.: 17 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The spectrum of boson fields and two-point correlators are analyzed in a quantum bar system (a superlattice formed by two crossed interacting arrays of quantum wires), with a short-range interwire interaction. The standard bosonization procedure is shown to be valid, within the two-wave approximation. The system behaves as a sliding Luttinger liquid in the vicinity of the Γ point, but its spectral and correlation characteristics have either 1D or 2D nature depending on the direction of the wave vector in the rest of the Brillouin zone. Due to the interwire interaction, unperturbed states propagating along the two arrays of wires are always mixed, and the transverse components of the correlation functions do not vanish. This mixing is especially strong around the diagonals of the Brillouin zone, where the transverse correlators have the same order of magnitude as the longitudinal ones.
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| first_indexed | 2025-12-07T13:24:31Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-130232 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T13:24:31Z |
| publishDate | 2002 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Kuzmenko, I. Gredeskul, S. Kikoin, K. Avishai, Y. 2018-02-09T10:46:57Z 2018-02-09T10:46:57Z 2002 Electronic excitations and correlations in quantum bars / I.Kuzmenko, S.Gredeskul, K.Kikoin, Y.Avishai // Физика низких температур. — 2002. — Т. 28, № 7. — С. 752-762. — Бібліогр.: 17 назв. — англ. 0132-6414 PACS: 73.23.-b, 73.40.-c https://nasplib.isofts.kiev.ua/handle/123456789/130232 The spectrum of boson fields and two-point correlators are analyzed in a quantum bar system (a superlattice formed by two crossed interacting arrays of quantum wires), with a short-range interwire interaction. The standard bosonization procedure is shown to be valid, within the two-wave approximation. The system behaves as a sliding Luttinger liquid in the vicinity of the Γ point, but its spectral and correlation characteristics have either 1D or 2D nature depending on the direction of the wave vector in the rest of the Brillouin zone. Due to the interwire interaction, unperturbed states propagating along the two arrays of wires are always mixed, and the transverse components of the correlation functions do not vanish. This mixing is especially strong around the diagonals of the Brillouin zone, where the transverse correlators have the same order of magnitude as the longitudinal ones. S. G. and K. K. are indebted to L. Gorelik, M.
 Jonson, I. Krive, and R. Shekhter for helpful discussions.
 They also thank Chalmers Technical University,
 where this work was started, for hospitality
 and support. This research is supported in part
 by grants from the Israel Science foundations, the
 DIP German–Israel cooperation program, and the
 USA–Israel BSF program. S. G. is happy to see
 this paper published in the special issue devoted to
 the Jubilee of his old friend and colleague, Academician
 Victor Eremenko. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Сильно коррелированные системы и высокотемпературная сверхпроводимость Electronic excitations and correlations in quantum bars Article published earlier |
| spellingShingle | Electronic excitations and correlations in quantum bars Kuzmenko, I. Gredeskul, S. Kikoin, K. Avishai, Y. Сильно коррелированные системы и высокотемпературная сверхпроводимость |
| title | Electronic excitations and correlations in quantum bars |
| title_full | Electronic excitations and correlations in quantum bars |
| title_fullStr | Electronic excitations and correlations in quantum bars |
| title_full_unstemmed | Electronic excitations and correlations in quantum bars |
| title_short | Electronic excitations and correlations in quantum bars |
| title_sort | electronic excitations and correlations in quantum bars |
| topic | Сильно коррелированные системы и высокотемпературная сверхпроводимость |
| topic_facet | Сильно коррелированные системы и высокотемпературная сверхпроводимость |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/130232 |
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