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Number of results
2008 | 113 | 1 | 437-440
Article title

Spin-1/2 XX Chains with Three-Spin Interactions

Content
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EN
Abstracts
EN
We consider a spin-1/2 XX chain with three-spin interactions which is equivalent to a system of noninteracting spinless fermions.We examine some dynamic quantities of the spin model.In particular, we calculate analytically the dynamic transverse (zz) structure factor which is governed by a two-fermion excitation continuum. Moreover, we compute numerically the dynamic xx structure factor which is a many-fermion dynamic quantity.We illustrate how the three-spin interactions manifest themselves in the dynamic probes.
Keywords
EN
Contributors
  • 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
author
  • Institute for Condensed Matter Physics, NASU, 1 Svientsitskii Street, L'viv-11, 79011, Ukraine
author
  • Institut fűr Physik, Universität Dortmund, 44221, Dortmund, Germany
References
  • 1. D. Gottlieb, J. Rössler, Phys. Rev. B 60, 9232 (1999)
  • 2. O. Derzhko, J. Richter, V. Derzhko, Ann. Phys. (Leipzig) 8, SI-49 (1999)
  • 3. I. Titvinidze, G.I. Japaridze, Eur. Phys. J. B 32, 383 (2003)
  • 4. A.A. Zvyagin, Phys. Rev. B 73, 104414 (2006)
  • 5. J.H. Taylor, G. Műller, Physica A 130, 1 (1985)
  • 6. T. Krokhmalskii, O. Derzhko, J. Stolze, T. Verkholyak, in preparation
  • 7. O. Derzhko, T. Krokhmalskii, J. Stolze, J. Phys. A 33, 3063 (2000);O. Derzhko, T. Krokhmalskii, J. Stolze, J. Phys. A 35, 3573 (2002)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1107kz
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