113 citations · 486 across the 27 of their papers we have counts for
28 papers
Update of PHYSBO: Improving Usability and Portability of Bayesian Optimization for Physics and Materials Research
Yuichi Motoyama, Kazuyoshi Yoshimi, Tatsumi Aoyama +3
Bayesian optimization (BO) is widely used to accelerate physics and materials research, where objective function evaluations are computationally or experimentally expensive. While…
Project For Advancement of Software Usability in Materials Science
Kazuyoshi Yoshimi, Yuichi Motoyama, Tatsumi Aoyama +2
The Institute for Solid State Physics (ISSP) at The University of Tokyo has been carrying out a software development project named ``the Project for Advancement of Software Usabili…
TeNeS-v2: Enhancement for Real-Time and Finite Temperature Simulations of Quantum Many-Body Systems
Yuichi Motoyama, Tsuyoshi Okubo, Kazuyoshi Yoshimi +4
Quantum many-body systems are challenging targets for computational physics due to their large degrees of freedom. The tensor networks, particularly Tensor Product States (TPS) and…
Robust analytic continuation using sparse modeling approach imposed by semi-positive definiteness for multi-orbital systems
Yuichi Motoyama, Hiroshi Shinaoka, Junya Otsuki +1
Analytic continuation (AC) from imaginary-time Green's function to spectral function is essential in the numerical analysis of dynamical properties in quantum many-body systems. Ho…
Configuration sampling in multi-component multi-sublattice systems enabled by ab Initio Configuration Sampling Toolkit (abICS)
Shusuke Kasamatsu, Yuichi Motoyama, Kazuyoshi Yoshimi +1
Simulation of the intermediate levels of disorder found in multi-component multi-sublattice systems in various functional materials is a challenging issue, even for state-of-the-ar…
H-wave -- A Python package for the Hartree-Fock approximation and the random phase approximation
Tatsumi Aoyama, Kazuyoshi Yoshimi, Kota Ido +5
H-wave is an open-source software package for performing the Hartree--Fock approximation (HFA) and random phase approximation (RPA) for a wide range of Hamiltonians of interacting…
Update of : Newly added functions and methods in versions 2 and 3
Kota Ido, Mitsuaki Kawamura, Yuichi Motoyama +5
[-] is an open-source software package of numerically exact and stochastic calculations for a wide range of quantum many-body systems. In this paper, we…
MateriApps LIVE! and MateriApps Installer: Environment for starting and scaling up materials science simulations
Yuichi Motoyama, Kazuyoshi Yoshimi, Takeo Kato +1
In our current era, numerical simulations have become indispensable theoretical and experimental tools for use in daily research activities, particularly in the materials science f…
Reply to Comments on "Universal and Non-Universal Correction Terms of Bose Gases in Dilute Region: A Quantum Monte Carlo Study"
Akiko Masaki-Kato, Yuichi Motoyama, Naoki Kawashima
We reply to the comments on our previous paper J. Phys. Soc. Jpn. 91, 024001 (2022)
Data-analysis software framework 2DMAT and its application to experimental measurements for two-dimensional material structures
Yuichi Motoyama, Kazuyoshi Yoshimi, Izumi Mochizuki +3
An open-source data-analysis framework 2DMAT has been developed for experimental measurements of two-dimensional material structures. 2DMAT offers five analysis methods: (i) Nelder…
Universal and Non-Universal Correction Terms of Bose Gases in Dilute Region: a Quantum Monte Carlo Study
Akiko Masaki-Kato, Yuichi Motoyama, Naoki Kawashima
We study dilute gases of interacting bosons at zero-temperature in the region where the system is characterized only by the s-wave scattering length. We carry out quantum Monte Car…
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…
sim-trhepd-rheed -- Open-source simulator of total-reflection high-energy positron diffraction (TRHEPD) and reflection high-energy electron diffraction (RHEED)
Takashi Hanada, Yuichi Motoyama, Kazuyoshi Yoshimi +1
The present paper reports sim-trhepd-rheed (STR), an open-source simulator of total-reflection high-energy positron diffraction (TRHEPD) and reflection high-energy electron diffrac…
Bayesian optimization package: PHYSBO
Yuichi Motoyama, Ryo Tamura, Kazuyoshi Yoshimi +3
PHYSBO (optimization tools for PHYSics based on Bayesian Optimization) is a Python library for fast and scalable Bayesian optimization. It has been developed mainly for application…
Data analysis of effective Hamiltonians in iron-based superconductors $\unicode{x2014}$ Construction of predictors for superconducting critical temperature
Kota Ido, Yuichi Motoyama, Kazuyoshi Yoshimi +1
High-temperature superconductivity occurs in strongly correlated materials such as copper oxides and iron-based superconductors. Numerous experimental and theoretical works have be…
Robust analytic continuation combining the advantages of the sparse modeling approach and Padé approximation
Yuichi Motoyama, Kazuyoshi Yoshimi, Junya Otsuki
Analytic continuation (AC) from the imaginary-time Green's function to the spectral function is a crucial process for numerical studies of the dynamical properties of quantum many-…
Non-monotonic behavior of the Binder Parameter in the discrete spin systems
Hiroshi Watanabe, Yuichi Motoyama, Satoshi Morita +1
We study a non-monotonic behavior of the Binder parameter, which appears in the discrete spin systems. We show that the Binder parameters of the Potts model are non-monotonic for $…
Facilitating {\it ab initio} configurational sampling of multicomponent solids using an on-lattice neural network model and active learning
Shusuke Kasamatsu, Yuichi Motoyama, Kazuyoshi Yoshimi +3
We propose a scheme for {\it ab initio} configurational sampling in multicomponent crystalline solids using Behler-Parinello type neural network potentials (NNPs) in an unconventio…
DSQSS: Discrete Space Quantum Systems Solver
Yuichi Motoyama, Kazuyoshi Yoshimi, Akiko Masaki-Kato +2
The Discrete Space Quantum Systems Solver (DSQSS) is a program package for solving quantum many-body problems defined on lattices. The DSQSS is based on the quantum Monte Carlo met…
RESPACK: An ab initio tool for derivation of effective low-energy model of material
Kazuma Nakamura, Yoshihide Yoshimoto, Yusuke Nomura +6
RESPACK is a first-principles calculation software for evaluating the interaction parameters of materials and is able to calculate maximally localized Wannier functions, response f…
K -- Open-source library for the shifted Krylov subspace method of the form
Takeo Hoshi, Mitsuaki Kawamura, Kazuyoshi Yoshimi +6
We develop K, an open-source linear algebra library for the shifted Krylov subspace methods. The methods solve a set of shifted linear equations $(z_k I-H)x^{(k)}=b\, (k=0,1,2,.…
SpM: Sparse modeling tool for analytic continuation of imaginary-time Green's function
Kazuyoshi Yoshimi, Junya Otsuki, Yuichi Motoyama +2
We present SpM, a sparse modeling tool for the analytic continuation of imaginary-time Green's function, licensed under GNU General Public License version 3. In quantum Monte Carlo…
Asymmetric melting of one-third plateau in kagome quantum antiferromagnets
Takahiro Misawa, Yuichi Motoyama, Youhei Yamaji
Asymmetric destruction of the one-third magnetization plateau upon heating is found in the spin-1/2 kagome Heisenberg antiferromagnets using the typical pure quantum state approach…
mVMC - Open-source software for many-variable variational Monte Carlo method
Takahiro Misawa, Satoshi Morita, Kazuyoshi Yoshimi +6
mVMC (many-variable Variational Monte Carlo) is an open-source software based on the variational Monte Carlo method applicable for a wide range of Hamiltonians for interacting ferm…