Local Electron Correlations in a Two-dimensional Hubbard Model on the Penrose Lattice
Strongly Correlated Electrons
2015-06-23 v1
Abstract
We study electron correlations in the half-filled Hubbard model on two-dimensional Penrose lattice. Applying the real-space dynamical mean-field theory to large clusters, we discuss how low-temperature properties are affected by the quasiperiodic structure. By calculating the double occupancy and renormalization factor at each site, we clarify the existence of the Mott transition. The spatially-dependent renormalization characteristic of geometrical structure is also addressed.
Keywords
Cite
@article{arxiv.1411.7067,
title = {Local Electron Correlations in a Two-dimensional Hubbard Model on the Penrose Lattice},
author = {Nayuta Takemori and Akihisa Koga},
journal= {arXiv preprint arXiv:1411.7067},
year = {2015}
}
Comments
4 pages, 5 figures, accepted for publication in J. Phys. Soc. Jpn