To the theory of spin–charge separation in one-dimensional correlated electron systems
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
To the theory of spin–charge separation in one-dimensional correlated electron systems
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| Creator |
Zvyagin, A.A.
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| Subject |
Низкоразмерные и неупорядоченные системы
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| 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. |
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| Date |
2017-06-10T07:32:44Z
2017-06-10T07:32:44Z 2004 |
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| Type |
Article
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| Identifier |
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 http://dspace.nbuv.gov.ua/handle/123456789/119852 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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