Fractional Exclusion Statistics for the t-J Model with Long Range Exchange and Hopping

Yusuke Kato, Yoshio Kuramoto

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


We construct thermodynamics of the one-dimensional supersymmetric t-J model with the 1/sin2 interaction and hopping. The thermodynamics is described exactly in terms of free spinons and holons obeying Haldane's fractional exclusion statistics at all temperatures. Moreover, at low temperatures the semionic spinons and holons decouple resulting in the spin-charge separation in thermodynamic properties. We obtain explicit results for the spin and charge susceptibilities and specific heat, and interpret them in terms of the fractional exclusion statistics. Extension to the multi-component t-J model shows that the excitations obey either fractional statistics for g-ons with partial polarization of components, or the parafermionic one without polarization.

Original languageEnglish
Pages (from-to)1622-1635
Number of pages14
Journaljournal of the physical society of japan
Issue number6
Publication statusPublished - 1996
Externally publishedYes


  • Fractional exclusion statistics
  • G-on
  • Parafermion
  • Sutherland model
  • T-J model
  • Thermodynamics

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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