Typicality-based variational cluster approach to thermodynamic properties of the Hubbard model

Hisao Nishida, Ryo Fujiuchi, Koudai Sugimoto, Yukinori Ohta

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We develop the variational-cluster-approximation method based on the thermal-pure-quantum-state approach and apply the method to the calculations of the thermodynamic properties of the Hubbard model. We thereby obtain the temperature dependence of the single-particle excitation spectra, entropy and specific heat, and order parameter of the antiferromagnetic phase efficiently. We thus demonstrate that the method developed here has a potential power for elucidating finite-temperature properties of strongly correlated electron systems.

Original languageEnglish
Article number023702
JournalJournal of the Physical Society of Japan
Volume89
Issue number2
DOIs
Publication statusPublished - 2020

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Typicality-based variational cluster approach to thermodynamic properties of the Hubbard model'. Together they form a unique fingerprint.

  • Cite this