The emptiness formation probability correlation in homogeneous and dimerized XX chains
We review some known properties of the emptiness formation probability correlation which we have calculated numerically for spin-1/2 XX chains with constant (homogeneous) or alternating (dimerized) nearestneighbor coupling and an external field (in z direction) for arbitrary temperature. The lon...
Збережено в:
| Дата: | 2009 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2009
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119994 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The emptiness formation probability correlation in homogeneous and dimerized XX chains / J. Stolze, T. Garske // Condensed Matter Physics. — 2009. — Т. 12, № 3. — С. 369-380. — Бібліогр.: 29 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | We review some known properties of the emptiness formation probability correlation which we have calculated
numerically for spin-1/2 XX chains with constant (homogeneous) or alternating (dimerized) nearestneighbor
coupling and an external field (in z direction) for arbitrary temperature. The long-distance asymptotic
behavior of this correlation is known to be Gaussian at zero temperature and exponential at finite temperature
for the homogeneous chain. By simple analytical arguments the exponential behavior at finite temperature
extends to the dimerized system. Numerical results for the dimerized chain confirm the exponential decay at
finite temperature and show Gaussian decay at zero temperature. |
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