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COMPANY RESEARCH · Software & applications

QunaSys

Provides building blocks for circuits and measurements, reusable algorithms and tools to evaluate their execution and resource requirements.

Official website ↗
Japan · Research reviewed 7 Sept 2026

Initial record: initial assessment recorded.

Review history 1 record

Record dates show when an assessment or clarification was saved. Review dates show the evidence check. Earlier records were recovered from QubitWire’s source history; no earlier score movement is inferred.

TECHNOLOGY & ACCESS

What it does. Where it fits.

Modular quantum algorithms, chemistry and resource estimation

Who should look closer

Quantum-chemistry researchers and developers testing how an algorithm maps onto present or future hardware.

QubitWire’s editorial assessment of practical fit.

Open-source SDK

Install the QURI suite and follow its simulation or real-device guides. Hardware execution requires the selected backend's access and supported operations.

Check the current access route ↗
DOCUMENTED EVIDENCE

What has been demonstrated

An Osaka preprint reports QURI Parts and OQTOPUS interfacing in a quantum-chemistry workflow, with selected reaction calculations agreeing with classical references. The authors include a QunaSys technical adviser.

What remains unresolved

The complete chemistry pipeline uses classical embedding and post-processing. Its result should not be attributed solely to the SDK or read as proven commercial advantage.

The next question to watch

Can independent chemistry teams reproduce useful accuracy while reporting the complete quantum and classical cost?

A research question, not a promised milestone.

QubitWire coverage

No published QubitWire stories currently match this organization. The evidence sources below provide the starting point.

CHECK THE ORIGINALS

Sources & evidence

  1. QURI SDK DocumentationOrganization-originated source · Publication date not stated

    Documents Parts, Algo and VM, including circuit construction, real-device guides, resource estimation and release information.

  2. QunaSys QURI SDK repositoryOrganization-originated source · Publication date not stated

    Provides the open-source SDK library suite and development resources for quantum algorithms across simulators and processors.

  3. Quantum computing for accurate large-scale electronic-structure calculations: DFT-embedded, post-processed quantum-selected configuration interactionOrganization-originated source · 4 Jun 2026

    University of Osaka authors report hardware-assisted chemistry using QURI Parts and OQTOPUS for quantum-classical interfacing; the method combines quantum sampling with classical embedding. Coauthor Wataru Mizukami is a QunaSys technical adviser; this is not independent validation.

  4. QunaSys leadership and advisersOrganization-originated source · Publication date not stated

    Names Wataru Mizukami as a technical adviser, establishing the affiliation of a coauthor on the reviewed chemistry paper.

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