Quantum Algorithms | Ueda Group

High-Precision Variational Quantum SVD via Classical Orthogonality Correction

Sat, 09 May 2026 00:00:00 +0000

New arXiv Paper by Miyakoshi et al.

Sat, 09 May 2026 00:00:00 +0000

A new paper by Shohei Miyakoshi, Takanori Sugimoto, Tomonori Shirakawa, Seiji Yunoki, and Hiroshi Ueda has been posted on arXiv.

Title: “High-Precision Variational Quantum SVD via Classical Orthogonality Correction”

The work proposes a hybrid quantum-classical framework for variational singular value decomposition and entanglement spectrum estimation based on tensor-network-inspired approaches.

Invited Talk at the 14th Workshop on Quantum Many-Body Computation

Fri, 17 Apr 2026 00:00:00 +0000

Hiroshi Ueda delivered an invited talk at the 14th Workshop on Quantum Many-Body Computation held in Beijing, China, from April 10 to 12, 2026.

Title of the talk:

“Variational Quantum Partial SVD with Orthogonality Correction: High-Precision Entanglement Spectra from Shallow Circuits”

The presentation introduced recent developments in hybrid quantum-classical algorithms for entanglement spectrum estimation, variational quantum singular value decomposition, and tensor-network-inspired quantum computation.

The workshop also provided opportunities for discussions on quantum algorithms, tensor networks, and future international collaborations.

Quantum-Inspired Algorithm for Classical Spin Hamiltonians Based on Matrix Product Operators

Thu, 05 Feb 2026 00:00:00 +0000

Large-scale quantum device benchmarking via LXEB with particle-number-conserving random quantum circuits

Mon, 26 Jan 2026 00:00:00 +0000

Diamond-shaped quantum circuit for real-time quantum dynamics in one dimension

Thu, 26 Dec 2024 00:00:00 +0000

Automatic quantum circuit encoding of a given arbitrary quantum state

Thu, 03 Oct 2024 00:00:00 +0000

Infinite-Size Density Matrix Renormalization Group with Parallel Hida's Algorithm

Sun, 01 Jul 2018 00:00:00 +0000