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Number of results
2008 | 113 | 1 | 441-444
Article title

Dynamic Correlations in a Random Spin-1/2 XY Chain

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EN
Abstracts
EN
We examine dynamic quantities of a random spin-1/2 isotropic XY chain in a transverse field. The randomness is related to the sign of the nearest-neighbor exchange interaction and can be eliminated by a suitable transformation. As a result, the dynamic quantities for the random spin chain are related to the same dynamic quantities for the homogeneous spin chain. We use the available results for the latter model to discuss the effect of randomness on the dynamic structure factors of the quantum spin chain.
Keywords
EN
Contributors
author
  • Institute for Condensed Matter Physics, NASU, 1 Svientsitskii Street, L'viv-11, 79011, Ukraine
author
  • Institute for Condensed Matter Physics, NASU, 1 Svientsitskii Street, L'viv-11, 79011, Ukraine
  • Institute for Condensed Matter Physics, NASU, 1 Svientsitskii Street, L'viv-11, 79011, Ukraine
author
  • Institut fűr Physik, Universität Dortmund, 44221, Dortmund, Germany
References
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  • 3. O. Derzhko, T. Krokhmalskii, J. Stolze, J. Phys. A 33, 3063 (2000);O. Derzhko, T. Krokhmalskii, J. Stolze, J. Phys. A 35, 3573 (2002)
  • 4. H.B. Cruz, L.L. Gonçalves, J. Phys. C 14, 2785 (1981)
  • 5. U. Brandt, K. Jacoby, Z. Phys. B 25, 181 (1976)
  • 6. T. Verkholyak, O. Derzhko, T. Krokhmalskii, J. Stolze, in preparation
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1108kz
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