Dynamics of dimer and z spin component fluctuations in spin-1/2 XY chain
One-dimensional quantum spin- 1/2 XY models admit the rigorous analysis not only of their static properties (i.e. the thermodynamic quantities and the equal-time spin correlation functions) but also of their dynamic properties (i.e. the different-time spin correlation functions, the dynamic...
Збережено в:
| Дата: | 2005 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2005
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/121060 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Dynamics of dimer and z spin component fluctuations in spin-1/2 XY chain / O. Derzhko, T. Krokhmalskii, P. Hlushak // Condensed Matter Physics. — 2005. — Т. 8, № 4(44). — С. 859-867. — Бібліогр.: 12 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | One-dimensional quantum spin- 1/2 XY models admit the rigorous analysis
not only of their static properties (i.e. the thermodynamic quantities
and the equal-time spin correlation functions) but also of their dynamic
properties (i.e. the different-time spin correlation functions, the dynamic
susceptibilities, the dynamic structure factors). This becomes possible after
exploiting the Jordan-Wigner transformation which reduces the spin model
to a model of spinless noninteracting fermions. A number of dynamic
quantities (e.g. related to transverse spin operator or dimer operator fluctuations)
are entirely determined by two-fermion excitations and can be examined
in much detail. |
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