Numerical renormalization-group study of the one-dimensional t-J model

Liang Chen, S. Moukouri

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The one-dimensional t-J model is investigated using the density-matrix renormalization-group (DMRG) method. We report a generalization of the DMRG method to the case of arbitrary band filling and prove a theorem with respect to the reduced density matrix that accelerates the numerical computation. Lastly, using the extended DMRG method, we present the ground-state electron momentum distribution, as well as spin- and charge-correlation functions. The 3(Formula presented) anomaly of the momentum distribution function discussed by Ogata and Shiba is shown to disappear as J increases. We also argue that there exists a density-independent (Formula presented) beyond which the system becomes an electron solid.

Original languageEnglish
Pages (from-to)1866-1870
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number4
StatePublished - 1 Jan 1996
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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