Typicality-Based Variational Cluster Approach to Thermodynamic Properties of the Hubbard Model
Strongly Correlated Electrons
2020-02-19 v1
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, thereby obtaining 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.
Keywords
Cite
@article{arxiv.1909.09335,
title = {Typicality-Based Variational Cluster Approach to Thermodynamic Properties of the Hubbard Model},
author = {Hisao Nishida and Ryo Fujiuchi and Koudai Sugimoto and Yukinori Ohta},
journal= {arXiv preprint arXiv:1909.09335},
year = {2020}
}
Comments
5 pages, 4 figures