To the theory of spin–charge separation in one-dimensional correlated electron systems
Spin—charge separation is considered to be one of the key properties that distinguish low-dimensional electron systems from others. Three-dimensional correlated electron systems are described by the Fermi liquid theory. There, low-energy excitations (quasiparticles) are reminiscent of noninteract...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2004 |
| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2004
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/119852 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | To the theory of spin–charge separation in one-dimensional correlated electron systems / A.A. Zvyagin // Физика низких температур. — 2004. — Т. 30, № 9. — С. 969–973. — Бібліогр.: 20 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-119852 |
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Zvyagin, A.A. 2017-06-10T07:32:44Z 2017-06-10T07:32:44Z 2004 To the theory of spin–charge separation in one-dimensional correlated electron systems / A.A. Zvyagin // Физика низких температур. — 2004. — Т. 30, № 9. — С. 969–973. — Бібліогр.: 20 назв. — англ. 0132-6414 PACS: 71.27.+a, 71.10.Fd, 71.10.Pm https://nasplib.isofts.kiev.ua/handle/123456789/119852 Spin—charge separation is considered to be one of the key properties that distinguish low-dimensional electron systems from others. Three-dimensional correlated electron systems are described by the Fermi liquid theory. There, low-energy excitations (quasiparticles) are reminiscent of noninteracting electrons: They carry charges e and spins 1/2. It is believed that for any one-dimensional correlated electron system, low-lying electron excitations carry either only spin and no charge, or only charge without spin. That is why recent experiments looked for such low-lying collective electron excitations, one of which carries only spin, and the other carries only charge. Here we show that despite the fact that for exactly solvable one-dimensional correlated electron models there exist excitations which carry only spin and only charge, in all these models with short-range interactions the low-energy physics is described by low-lying collective excitations, one of which carries both spin and charge. I appreciate a discussion with P.W. Anderson on spin—charge separation theories for two-dimensional correlated electron models. I thank H. Johannesson for useful comments. This work was supported in part by the Swedish Foundation for International Cooperation in Research and Higher Education (STINT). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкоразмерные и неупорядоченные системы To the theory of spin–charge separation in one-dimensional correlated electron systems Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
To the theory of spin–charge separation in one-dimensional correlated electron systems |
| spellingShingle |
To the theory of spin–charge separation in one-dimensional correlated electron systems Zvyagin, A.A. Низкоразмерные и неупорядоченные системы |
| title_short |
To the theory of spin–charge separation in one-dimensional correlated electron systems |
| title_full |
To the theory of spin–charge separation in one-dimensional correlated electron systems |
| title_fullStr |
To the theory of spin–charge separation in one-dimensional correlated electron systems |
| title_full_unstemmed |
To the theory of spin–charge separation in one-dimensional correlated electron systems |
| title_sort |
to the theory of spin–charge separation in one-dimensional correlated electron systems |
| author |
Zvyagin, A.A. |
| author_facet |
Zvyagin, A.A. |
| topic |
Низкоразмерные и неупорядоченные системы |
| topic_facet |
Низкоразмерные и неупорядоченные системы |
| publishDate |
2004 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
Spin—charge separation is considered to be one of the key properties that distinguish low-dimensional
electron systems from others. Three-dimensional correlated electron systems are described
by the Fermi liquid theory. There, low-energy excitations (quasiparticles) are reminiscent
of noninteracting electrons: They carry charges e and spins 1/2. It is believed that for any one-dimensional
correlated electron system, low-lying electron excitations carry either only spin and no
charge, or only charge without spin. That is why recent experiments looked for such low-lying collective
electron excitations, one of which carries only spin, and the other carries only charge. Here
we show that despite the fact that for exactly solvable one-dimensional correlated electron models
there exist excitations which carry only spin and only charge, in all these models with short-range
interactions the low-energy physics is described by low-lying collective excitations, one of which
carries both spin and charge.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/119852 |
| citation_txt |
To the theory of spin–charge separation in one-dimensional correlated electron systems / A.A. Zvyagin // Физика низких температур. — 2004. — Т. 30, № 9. — С. 969–973. — Бібліогр.: 20 назв. — англ. |
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AT zvyaginaa tothetheoryofspinchargeseparationinonedimensionalcorrelatedelectronsystems |
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2025-12-07T15:57:59Z |
| last_indexed |
2025-12-07T15:57:59Z |
| _version_ |
1850865698105982976 |