NEC, ParityQC Collaborate to Develop Highly-scalable, Practical Quantum Computers

Tokyo, Japan and Innsbruck, Austria, Feb 10, 2021 – (JCN Newswire) – NEC Corporation (TSE: 6701) and ParityQC today announced that they have started collaborating in the field of quantum annealing, a method of quantum computing. NEC will be the first company worldwide(1) implementing the ParityQC architecture for quantum annealing devices.

The collaboration entails NEC implementing the ParityQC Architecture(2), ParityQC’s new paradigm on how to solve optimization problems on a quantum computer, into its own superconducting parametron quantum devices(3). This will pave the way for highly-scalable, practical quantum annealers capable of solving large-scale combinatorial optimization problems such as financial portfolio optimization and manufacturing planning. NEC aims to develop such quantum annealers for practical use by 2023.

The combination of ParityQC’s software, which ensures a compact encoding of industry-relevant problems, and the architecture’s capabilities allow organizations to benefit by performing larger computations. Realizing quantum devices using the ParityQC architecture provides a path to resolving challenges on the route to practical large scale quantum annealers.

NEC, partially supported by Japan’s New Energy and Industrial Technology Development Organization (NEDO), is now developing quantum annealers using superconducting parametron qubits and working on increasing the number of all-to-all connected qubits, with an aim to realize practical machines by 2023. NEC will apply the results of the collaboration with ParityQC to the ongoing project with NEDO.

Masayuki Shirane, Senior Manager, System Platform Research Laboratories, NEC Corporation, said, “I’m thrilled about this partnership in quantum computing research with ParityQC. I firmly believe that using the ParityQC architecture will enable us to realize a quantum annealing machine that delivers the full potential of our superconducting parametron qubits.”

Magdalena Hauser & Wolfgang Lechner, CEOs of ParityQC, said, “One of the great advantages of simultaneously developing hardware and software is the perfect alignment of both disciplines. Exploring this approach together with NEC’s newly developed hardware platform holds great promise.”

(1) According to NEC research, as at February 10, 2021.
(2) The ParityQC Architecture (based on the LHZ scheme) represents a completely new paradigm on how to solve optimization problems on a quantum computer. The architecture delivers a blueprint (instructions set and chip layout) for quantum computers that enables hardware developers to build fully programmable, parallelizable and scalable chips with a greatly reduced complexity. The LHZ scheme was first proposed by Lechner, Hauke and Zoller, see new window

About ParityQC

ParityQC is a quantum architecture company from Austria which develops blueprints for quantum computers to solve optimization problems based on the ParityQC architecture. ParityQC’s operating system – ParityOS – allows for a compilation of optimization problems with an order of magnitude fewer qubits compared to the standard annealing approach. This will enable the encoding of large and complex optimization problems years earlier compared to the standard approach.

About NEC Corporation

NEC Corporation has established itself as a leader in the integration of IT and network technologies while promoting the brand statement of “Orchestrating a brighter world.” NEC enables businesses and communities to adapt to rapid changes taking place in both society and the market as it provides for the social values of safety, security, fairness and efficiency to promote a more sustainable world where everyone has the chance to reach their full potential. For more information, visit NEC at

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