Quantum Computation Method and Information Processing Apparatus

ChangeBridge: Patent Apps - AI & Computing (G06N)

Published December 9th, 2025

Detected April 3rd, 2026

Summary

USPTO published patent application US20260094038A1 by Fujitsu Limited covering a quantum computation method using Molmer-Sorensen (MS) gates. The invention generates multiple equivalent quantum circuits by converting two-qubit gates using MS gates with varying parameter values, executes computations across these circuits, and outputs averaged results. Application 19412895 was filed December 9, 2025.

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What changed

Fujitsu Limited filed patent application US20260094038A1 for a quantum computation method using Molmer-Sorensen (MS) gates to improve two-qubit gate accuracy in quantum computers. The information processing apparatus converts a two-qubit gate from an original quantum circuit into multiple equivalent circuits, each generated using MS gates with different parameter values. The quantum computer executes computations according to each equivalent circuit, and the results are averaged to produce the final computation output. The CPC classification is G06N 10/20.

This is a patent application publication, not a regulatory requirement. Technology companies and research institutions developing quantum computing applications involving MS gates should review the claims to assess potential freedom-to-operate implications. No compliance deadlines or penalties apply to this filing. Entities should monitor this application through the examination process for any issued patent that could affect quantum computing R&D programs.

Source document (simplified)

← USPTO Patent Applications

QUANTUM COMPUTATION METHOD AND INFORMATION PROCESSING APPARATUS

Application US20260094038A1 Kind: A1 Apr 02, 2026

Assignee

Fujitsu Limited

Inventors

Masatoshi ISHII

Abstract

An information processing apparatus obtains a plurality of equivalent circuits, which is equivalent to a two-qubit gate included in a first quantum circuit and is generated using respective ones of a plurality of MS gates whose parameter values differ. The information processing apparatus generates a plurality of second quantum circuits by converting the two-qubit gate included in the first quantum circuit into each of the equivalent circuits. The information processing apparatus causes a quantum computer to execute quantum computations respectively in accordance with the generated second quantum circuits. Then, the information processing apparatus outputs, as a computation result of the first quantum circuit, a value obtained by averaging results of the quantum computations executed respectively in accordance with the second quantum circuits.