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2008 | 114 | 1 | 159-163
Article title

Pairing Scenarios for the Hubbard Model in the Strong Coupling Limit

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Abstracts
EN
We consider a spin-rotationally invariant Hubbard model. The original electron operator is presented in the charge-spin-fermion U(1)×SU(2) factorized form. The factorization procedure is given in terms of the emergent gauge fields. As a result, the electron appears like a composite object consisting of strongly fluctuating phase field and spatially rotating spin axis. Furthermore, we elaborate microscopically on the form of possible pairing states.
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Contributors
author
  • Institute for Low Temperature and Structure Research, P.O. Box 1410, 50-950 Wrocław 2, Poland
author
  • Institute for Low Temperature and Structure Research, P.O. Box 1410, 50-950 Wrocław 2, Poland
References
  • 1. T.K. Kopec, Phys. Stat. Sol. B 244, 2458 (2007)
  • 2. See for instance J.W. Negele, H. Orland, in: Quantum Many Particle Systems, Frontiers in Physics, Addison-Wesley, Boston 1988
  • 3. T.K. Kopec, Phys. Rev. B 73, 132512 (2006)
  • 4. N. Dupuis, S. Pairault, Int. J. Mod. Phys. B 14, 2529 (2000)
  • 5. G. Baskaran, Z. Zou, P.W. Anderson, Solid State Commun. 63, 973 (1987)
  • 6. A. Auerbach, Interacting Electrons and Quantum Magnetism, Springer-Verlag, New York 1994
  • 7. V.A. Apinyan, T.K. Kopeć, in preparation
Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv114n122kz
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