Phase transition of an SU(3) symmetric spin-1 chain

Tohru Mashiko, Kiyohide Nomura

研究成果: Contribution to journalArticle査読

抄録

We investigate a phase transition in an SU(3) symmetric spin-1 chain. To study this transition, we numerically diagonalize an SU(3) symmetric Hamiltonian combining the Uimin-Lai-Sutherland (ULS) model Hamiltonian with the Hamiltonian of the exact trimer ground state ( symmetry breaking). Our numerical results are discussed on the basis of the conformal field theory (CFT) and the renormalization group (RG). We then show the phase transition between a trimer liquid phase (massless, no long-range order) and a trimer phase (spontaneously symmetry breaking). Next, we find the central charge in the massless phase, and in the symmetry broken phase. From these results, we identify the universality class of the critical trimer liquid phase, as well as the phase boundary between these two phases.

本文言語英語
論文番号155405
ジャーナルPhysical Review B
104
15
DOI
出版ステータス出版済み - 10 15 2021

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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