Exact charge dynamics in the supersymmetric t-J model with inverse-square interaction

Mitsuhiro Arikawa, Takashi Yamamoto, Yasuhiro Saiga, Yoshio Kuramoto

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The dynamical charge structure factor N(Q,ω) with Q smaller than the Fermi wave number is derived analytically for the one-dimensional supersymmetric t-J model with 1/r2 interaction. Strong spin-charge separation in dynamics is found. N(Q,ω) with a given electron density does not depend on the spin polarization of a system with an arbitrary size. In the thermodynamic limit, only two holons and one antiholon contribute to N(Q,ω). These results together with generalized ones for the SU(K,1) supersymmetric t-J model are derived via solution of the Sutherland model in the strong coupling limit.

Original languageEnglish
Pages (from-to)3782-3785
Number of pages4
Journaljournal of the physical society of japan
Volume68
Issue number12
DOIs
Publication statusPublished - 1999 Dec

Keywords

  • Charge dynamics
  • Elementary excitation
  • Fractional statistics
  • Spin-charge separation
  • Supersymmetric t-J model
  • Sutherland model

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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