Particle propagator of the spin Calogero-Sutherland model

Ryota Nakai, Yusuke Kato

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Explicit-exact expressions for the particle propagator of the spin 1/2 Calogero-Sutherland model are derived for the system of a finite number of particles and for that in the thermodynamic limit. Derivation of the expression in the thermodynamic limit is also presented in detail. Combining this result with the hole propagator obtained in earlier studies, we calculate the spectral function of the single particle Green's function in the full range of the energy and momentum space. The resultant spectral function exhibits power-law singularity characteristic to correlated particle systems in one dimension.

Original languageEnglish
Article number305205
JournalJournal of Physics A: Mathematical and Theoretical
Volume47
Issue number30
DOIs
Publication statusPublished - 2014 Aug 1

Keywords

  • Calogero-Sutherland model
  • Green's function
  • Jack polynomial

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Modelling and Simulation
  • Mathematical Physics
  • Physics and Astronomy(all)

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