https://doi.org/10.1051/epjconf/201817511015
Loop-TNR analysis of CP(1) model with theta term
Institute for Theoretical Physics, Kanazawa University, Kanazawa 920-1192, Japan
* Speaker, e-mail: kawauchi@hep.s.kanazawa-u.ac.jp
Published online: 26 March 2018
The phase structure of the two dimensional lattice CP(1) model in the presence of the θ term is analyzed by tensor network methods. The tensor renormalization group, which is a standard renormalization method of tensor networks, is used for the regions θ = 0 and θ ≠ 0. Loop-TNR, which is more suitable for the analysis of near criticality, is also implemented for the region θ = 0. The application of Loop-TNR for the region θ ≠ 0 is left for future work.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
