Masari Watanabe

activity

20182026

most citedQuantum magnetic properties of the spin-1/2 triangular-lattice antiferromagnet Ba

_{2}

_{2}

CoTe

_{2}

_{12}

40 citations · 116 across the 10 of their papers we have counts for

collaborators

11 papers

quant-ph2026

First-quantized quantum simulation with non-local potentials by matrix-product-state encoding

Kazuki Tsuoka, Taichi Kosugi, Masari Watanabe +2

Quantum simulations based on first-quantized approaches can offer lower space and gate complexities than second-quantized approaches. The gate requirements for these simulations ca…

quant-ph2026

End-to-End Molecular Dynamics with a Langevin Thermostat on Quantum Circuits

Masari Watanabe, Hirofumi Nishi, Taichi Kosugi +3

We construct a quantum-circuit framework for finite-temperature molecular dynamics in the canonical ensemble (NVT) with a Langevin thermostat, connecting canonical state preparatio…

quant-ph2026

Koopman--von Neumann Molecular Dynamics for Green--Kubo Transport Coefficients

Masari Watanabe, Hirofumi Nishi, Taichi Kosugi +3

We formulate the Green--Kubo transport coefficients of classical molecular dynamics as a readout problem for quantum algorithms using the Koopman--von Neumann (KvN) representation.…

quant-ph2026

Overcoming the Matrix-Product-State Encoding Barrier via DMRG-Guided Probabilistic Imaginary-Time Evolution

Masari Watanabe, Hirofumi Nishi, Taichi Kosugi +2

Ground-state preparation is a fundamental task in quantum simulation, because the overlap of the prepared state with the true ground state significantly affects the overall cost of…

quant-ph2026

Problem-Specific Basis Quantum State Readout via Proper Orthogonal Decomposition

Kota Ichiki, Xinchi Huang, Gekko Budiutama +7

Quantum computing offers a promising approach to accelerating partial differential equation (PDE) solvers for large-scale, real-world problems. However, reconstructing the classica…

cond-mat.stat-mech2026

NMR study on equilateral triangular lattice antiferromagnet Ba2La2CoTe2O12

Keito Morioka, Takayuki Goto, Masari Watanabe +5

We report a 139La-NMR study of Ba2La2CoTe2O12, S = 1/2 equilateral triangular-lattice antiferromagnet with easy-plane anisotropy at low temperatures. This compound undergoes a magn…

cond-mat.str-el2022★ 10 cited

Contrasting Magnetic Structures in SrLaCuSbO $_{6}$ and SrLaCuNbO $_{6}$ : Spin-1/2 Quasi-Square-Lattice $J_{1} - J_{2}$ Heisenberg Antiferromagnets

Masari Watanabe, Nobuyuki Kurita, Hidekazu Tanaka +4

We report the magnetic properties of the double perovskites SrLaCuSbO $_{6}$ (SLCSO) and SrLaCuNbO $_{6}$ (SLCNO). The temperature dependence of the magnetic susceptibilities of both com…

cond-mat.str-el2021★ 15 cited

Structures of magnetic excitations in the spin-1/2 kagome-lattice antiferromagnets Cs $_{2}$ Cu $_{3}$ SnF $_{12}$ and Rb $_{2}$ Cu $_{3}$ SnF $_{12}$

Mutsuki Saito, Ryunosuke Takagishi, Nobuyuki Kurita +6

We show the structures of magnetic excitations in spin-1/2 kagome-lattice antiferromagnets Cs $_{2}$ Cu $_{3}$ SnF $_{12}$ and Rb $_{2}$ Cu $_{3}$ SnF $_{12}$ investigated by inelastic neutron scatt…

cond-mat.str-el2019★ 19 cited

Successive phase transitions and quantum magnetization plateau in the spin-1 triangular-lattice antiferromagnet Ba $_{2}$ La $_{2}$ NiTe $_{2}$ O $_{12}$

Mutsuki Saito, Masari Watanabe, Nobuyuki Kurita +5

The crystal structure and magnetic properties of the spin-1 triangular-lattice antiferromagnet Ba $_{2}$ La $_{2}$ NiTe $_{2}$ O $_{12}$ are reported. Its crystal structure is trigonal $R\bar{3…

cond-mat.str-el2018★ 32 cited

Valence-Bond-Glass State with Singlet Gap in the Spin-1/2 Square-Lattice Random $J_{1}$ - $J_{2}$ Heisenberg Antiferromagnet Sr $_{2}$ CuTe $_{1 - x}$ W $_{x}$ O $_{6}$

Masari Watanabe, Nobuyuki Kurita, Hidekazu Tanaka +3

The double-perovskite compounds Sr $_{2}$ CuTeO $_{6}$ and Sr $_{2}$ CuWO $_{6}$ are magnetically described as quasi-two-dimensional spin-1/2 square-lattice $J_{1} - J_{2}$ Heisenberg antiferromagne…

cond-mat.str-el2018★ 40 cited

Quantum magnetic properties of the spin-1/2 triangular-lattice antiferromagnet Ba $_{2}$ La $_{2}$ CoTe $_{2}$ O $_{12}$

Yuki Kojima, Masari Watanabe, Nobuyuki Kurita +4

We report the crystal structure of Ba $_{2}$ La $_{2}$ CoTe $_{2}$ O $_{12}$ determined by Rietveld analysis using X-ray powder diffraction data. It was found from magnetic measurements that Ba…

First-quantized quantum simulation with non-local potentials by matrix-product-state encoding

End-to-End Molecular Dynamics with a Langevin Thermostat on Quantum Circuits

Koopman--von Neumann Molecular Dynamics for Green--Kubo Transport Coefficients

Overcoming the Matrix-Product-State Encoding Barrier via DMRG-Guided Probabilistic Imaginary-Time Evolution

Problem-Specific Basis Quantum State Readout via Proper Orthogonal Decomposition

NMR study on equilateral triangular lattice antiferromagnet Ba2La2CoTe2O12

Contrasting Magnetic Structures in SrLaCuSbO6​ and SrLaCuNbO6​: Spin-1/2 Quasi-Square-Lattice J1​−J2​ Heisenberg Antiferromagnets

Structures of magnetic excitations in the spin-1/2 kagome-lattice antiferromagnets Cs2​Cu3​SnF12​ and Rb2​Cu3​SnF12​

Successive phase transitions and quantum magnetization plateau in the spin-1 triangular-lattice antiferromagnet Ba2​La2​NiTe2​O12​

Valence-Bond-Glass State with Singlet Gap in the Spin-1/2 Square-Lattice Random J1​-J2​ Heisenberg Antiferromagnet Sr2​CuTe1−x​Wx​O6​

Quantum magnetic properties of the spin-1/2 triangular-lattice antiferromagnet Ba2​La2​CoTe2​O12​

Contrasting Magnetic Structures in SrLaCuSbO $_{6}$ and SrLaCuNbO $_{6}$ : Spin-1/2 Quasi-Square-Lattice $J_{1} - J_{2}$ Heisenberg Antiferromagnets

Structures of magnetic excitations in the spin-1/2 kagome-lattice antiferromagnets Cs $_{2}$ Cu $_{3}$ SnF $_{12}$ and Rb $_{2}$ Cu $_{3}$ SnF $_{12}$

Successive phase transitions and quantum magnetization plateau in the spin-1 triangular-lattice antiferromagnet Ba $_{2}$ La $_{2}$ NiTe $_{2}$ O $_{12}$

Valence-Bond-Glass State with Singlet Gap in the Spin-1/2 Square-Lattice Random $J_{1}$ - $J_{2}$ Heisenberg Antiferromagnet Sr $_{2}$ CuTe $_{1 - x}$ W $_{x}$ O $_{6}$

Quantum magnetic properties of the spin-1/2 triangular-lattice antiferromagnet Ba $_{2}$ La $_{2}$ CoTe $_{2}$ O $_{12}$