@article{Aizawa:2025cy, author = "Aizawa, Hayato and Takeda, Shinji and Yoshimura, Yusuke", title = "{Phase structure analysis of 2d CP(1) model with $\theta$ term by tensor renormalization group}", doi = "10.22323/1.466.0371", journal = "PoS", year = 2025, volume = "LATTICE2024", pages = "371" }