Thermodynamics of the t−J ladder: A stable finite-temperature density matrix renormalization group calculation

Beat Ammon, Matthias Troyer, T. M. Rice, N. Shibata

研究成果: Article査読

24 被引用数 (Scopus)

抄録

Accurate numerical simulations of a doped t−J model on a two-leg ladder are presented for the particle number, chemical potential, magnetic susceptibility, and entropy in the limit of large exchange coupling on the rung using a finite-temperature density matrix renormalization group method. This required an improved algorithm to achieve numerical stability down to low temperatures. The thermal dissociation of hole pairs and of the rung singlets are separately observed, and the evolution of the hole pair binding energy and magnon spin gap with hole doping is determined.

本文言語English
ページ(範囲)3855-3858
ページ数4
ジャーナルPhysical review letters
82
19
DOI
出版ステータスPublished - 1999

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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