New arXiv Paper by Jiang and Ueda
A new paper on isometrization of tensor-network states via gauge propagation has been posted on arXiv.
Research
The Ueda Group focuses on tensor network methods, quantum many-body physics, quantum algorithms, and quantum-classical hybrid computation.
We develop numerical and theoretical methods for strongly correlated systems, quantum entanglement, variational quantum computation, and quantum-HPC hybrid workflows.
Our research connects condensed matter physics, quantum information, and high-performance computing.
Research Topics
Tensor Networks: Development and optimization of tensor network methods for quantum and classical many-body systems.
Quantum Algorithms: Design of quantum algorithms inspired by entanglement structures and tensor network representations.
Quantum-Classical Hybrid Computation: Variational quantum algorithms, tensor-network ansätze, and hybrid workflows for near-term quantum devices.
Quantum HPC: Integration of quantum computing, high-performance computing, and numerical many-body methods.
Recent Publications
(2026).
Isometrization of Tensor Network States via Gauge Propagation.
arXiv:2606.22816 [cond-mat.str-el].
(2026).
High-Precision Variational Quantum SVD via Classical Orthogonality Correction.
arXiv:2605.08683 [quant-ph].
(2026).
Quantum-Inspired Algorithm for Classical Spin Hamiltonians Based on Matrix Product Operators.
arXiv:2602.05224 (2026) [15 pages].
(2026).
Large-scale quantum device benchmarking via LXEB with particle-number-conserving random quantum circuits.
Physical Review Research.
(2026).
TTNOpt: Tree tensor network package for high-rank tensor compression.
Computer Physics Communications 319, 109918.
Recent News
Invited Seminar on Entanglement Structures in Quantum Many-Body Systems
Hiroshi Ueda delivered an invited seminar on tensor networks, entanglement structures, and quantum–classical hybrid approaches for quantum many-body systems.
New arXiv Paper by Miyakoshi et al.
A new paper on variational quantum SVD has been posted on arXiv.
Invited Talk at the 14th Workshop on Quantum Many-Body Computation
Hiroshi Ueda delivered an invited talk in Beijing on variational quantum partial SVD and entanglement spectrum estimation.
Visiting Students Joined the Ueda Group
We welcome visiting students from EPFL, the University of Toronto, and UPV/EHU.
Ueda Group Website Launched
The official website of the Ueda Group has been launched.