Detection of exotic order parameters of quantum antiferromagnets through reduced density matrices

Shunsuke Furukawa, Grégoire Misguich, Masaki Oshikawa

研究成果: Article査読

抄録

We propose a new method based on reduced density matrices for determining order parameters of quantum spin systems. Our method can extract the order parameter directly from ground-state wave functions without prior knowledge, and thus has a potential for detecting unknown exotic orders. We numerically apply our method to the multiple-spin exchange model on the ladder and detect the staggered dimer and the scalar chiral orders which have been found in previous studies. We also consider the resonating valence bond liquid in a solvable quantum dimer model and demonstrate through reduced density matrices that its ground states cannot be characterized by any local order parameter.

本文言語English
ページ(範囲)143-147
ページ数5
ジャーナルProgress of Theoretical Physics Supplement
159
DOI
出版ステータスPublished - 2005
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

フィンガープリント 「Detection of exotic order parameters of quantum antiferromagnets through reduced density matrices」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル