620 citations · 1.8k across the 34 of their papers we have counts for
34 papers
Quantum spin state stabilized by coupling with classical spins
Hironori Yamaguchi, Tsuyoshi Okubo, Akira Matsuo +5
We introduce a model compound featuring a spin-1/2 frustrated square lattice partially coupled by spin-5/2. A significant magnetization plateau exceeding 60 T could be observed, in…
Universal Scaling Laws of Absorbing Phase Transitions in Artificial Deep Neural Networks
Keiichi Tamai, Tsuyoshi Okubo, Truong Vinh Truong Duy +2
We demonstrate that conventional artificial deep neural networks operating near the phase boundary of the signal propagation dynamics, also known as the edge of chaos, exhibit univ…
Hunting for quantum-classical crossover in condensed matter problems
Nobuyuki Yoshioka, Tsuyoshi Okubo, Yasunari Suzuki +2
The intensive pursuit for quantum advantage in terms of computational complexity has further led to a modernized crucial question: {\it When and how will quantum computers outperfo…
Possibility of a Topological Phase Transition in Two-dimensional Model
Tsuyoshi Okubo, Naoki Kawashima
We study by large-scale Monte Carlo simulation the model, which can be regarded as an effective low-energy model of a triangular lattice Heisenberg antiferromagnet. vo…
TeNeS: Tensor Network Solver for Quantum Lattice Systems
Yuichi Motoyama, Tsuyoshi Okubo, Kazuyoshi Yoshimi +3
TeNeS (Tensor Network Solver) is a free/libre open-source software program package for calculating two-dimensional many-body quantum states based on the tensor network method and t…
Quantum critical phenomena in a spin-1/2 frustrated square lattice with spatial anisotropy
H. Yamaguchi, Y. Iwasaki, Y. Kono +7
We present a model compound with a spin-1/2 spatially anisotropic frustrated square lattice, in which three antiferromagnetic interactions and one ferromagnetic interaction are com…