@article{oai:tsukuba.repo.nii.ac.jp:00055708,
author = {藏増, 嘉伸 and KURAMASHI, Yoshinobu and Yoshimura, Yusuke},
issue = {4},
journal = {Journal of High Energy Physics},
month = {Apr},
note = {We make an analysis of the two-dimensional U(1) lattice gauge theory with a θ term by using the tensor renormalization group. Our numerical result for the free energy shows good consistency with the exact one at finite coupling constant. The topological charge density generates a finite gap at θ = π toward the thermodynamic limit. In addition finite size scaling analysis of the topological susceptibility up to V = L × L = 1024 × 1024 allows us to determine the phase transition at θ = π is the first order.},
title = {Tensor renormalization group study of two-dimensional U(1) lattice gauge theory with a θ term},
volume = {2020},
year = {2020},
yomi = {クラマシ, ヨシノブ}
}