Partially Solvable Anisotropic t-J Model with Long-Range Interactions

Yasuhiro Saiga, Yusuke Kato, Yoshio Kuramoto

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A new anisotropic t-J model in one dimension is proposed which has long-range hopping and exchange. This t-J model is only partially solvable in contrast to known integrable models with long-range interaction. In the high-density limit the model reduces to the XXZ chain with the long-range exchange. Some exact eigenfunctions are shown to be of the Jastrow type if certain conditions for an anisotropy parameter are satisfied. The ground state as well as the excitation spectrum for various values of the anisotropy parameter and filling are derived numerically. It is found that the Jastrow-type wave function is an excellent trial function for any value of the anisotropy parameter.

Original languageEnglish
Pages (from-to)2361-2364
Number of pages4
Journaljournal of the physical society of japan
Issue number8
Publication statusPublished - 1996
Externally publishedYes


  • Anisotropy
  • Exact diagonalization
  • Excitation spectrum
  • Inverse-square interaction
  • Jastrow-type wave function
  • t-J model

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Partially Solvable Anisotropic t-J Model with Long-Range Interactions'. Together they form a unique fingerprint.

Cite this