Application of numerical quantum transfer-matrix approach in the randomly diluted quantum spin chains

Ryszard Matysiak, Philipp Gegenwart, Akira Ochiai, Frank Steglich

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The description of the numerical method of simulation based on the quantum transfer-matrix (QTM) approach is presented for diluted spin S= 1/2 chains. Modification of the extrapolation technique has been used to obtain better accuracy of numerical results. The simulations have been performed using the S= 1/2 antiferromagnetic Heisenberg model with the transverse staggered field and a uniform magnetic field perpendicular to the staggered field applicable for the diluted compound (Yb 1-x Lu x) 4 As 3. In the model calculations the fixed microscopic parameters established earlier for the pure system have been assumed and the random impurity distribution has been considered. The experimental field-dependent specific heat of the polydomain diluted (Yb 1-x Lu x) 4 As 3 sample is compared with that calculated using the HPC resources and providing additional verification of both the QTM method and the physical model.

本文言語English
ホスト出版物のタイトルParallel Processing and Applied Mathematics - 12th International Conference, PPAM 2017, Revised Selected Papers
編集者Ewa Deelman, Roman Wyrzykowski, Konrad Karczewski, Jack Dongarra
出版社Springer Verlag
ページ359-367
ページ数9
ISBN(印刷版)9783319780535
DOI
出版ステータスPublished - 2018
イベント12th International Conference on Parallel Processing and Applied Mathematics, PPAM 2017 - Czestochowa, Poland
継続期間: 2017 9月 102017 9月 13

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
10778 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

Other12th International Conference on Parallel Processing and Applied Mathematics, PPAM 2017
国/地域Poland
CityCzestochowa
Period17/9/1017/9/13

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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