Publications

Toshiya Hikihara, Hiroshi Ueda, Kouichi Okunishi, Kenji Harada, Tomotoshi Nishino (2026). Visualization of Entanglement Geometry by Structural Optimization of Tree Tensor Network. Proceedings of the 34th IUPAP Conference on Computational Physics, Springer Proceedings in Physics 356, 117–126 (2026).

Zhiyu Jiang, Hiroshi Ueda (2026). Isometrization of Tensor Network States via Gauge Propagation. arXiv:2606.22816 [cond-mat.str-el].

Jozef Genzor, Roman Krčmár, Hiroshi Ueda, Tomotoshi Nishino, Denis Kochan, Andrej Gendiar (2026). Critical phenomena on a 3D fractal with intermediate dimensionality: tensor-network study. npj Spintronics 4, 29 (2026).

Wenlin Li, Chengsong Zhao, Najmeh Eshaqi-Sani, Zhiyu Jiang, Xingli Li (2026). Detection of Planck-scale physics facilitated by nonlinear quantum optics. Physical Review A 113, 053526 (2026).

Shohei Miyakoshi, Takanori Sugimoto, Tomonori Shirakawa, Seiji Yunoki, Hiroshi Ueda (2026). High-Precision Variational Quantum SVD via Classical Orthogonality Correction. arXiv:2605.08683 [quant-ph].

Ryo Watanabe, Joseph Tindall, Shohei Miyakoshi, Hiroshi Ueda (2026). Quantum-Inspired Algorithm for Classical Spin Hamiltonians Based on Matrix Product Operators. arXiv:2602.05224 (2026) [15 pages].

Takumi Kaneda, Keisuke Fujii, Hiroshi Ueda (2026). Large-scale quantum device benchmarking via LXEB with particle-number-conserving random quantum circuits. Physical Review Research.

Ryo Watanabe, Hidetaka Manabe, Toshiya Hikihara, Hiroshi Ueda (2026). TTNOpt: Tree tensor network package for high-rank tensor compression. Computer Physics Communications 319, 109918.

Ryo Watanabe, Toshiya Hikihara, Hiroshi Ueda (2025). Site-Order Optimization in the Density Matrix Renormalization Group via Multi-Site Rearrangement. arXiv:2512.22021 (2025).

Toshiya Hikihara, Hiroshi Ueda, Kouichi Okunishi, Kenji Harada, Tomotoshi Nishino (2025). Improving the accuracy of the tree-tensor network approach by optimization of network structure. Physical Review B.