Fujitsu and Riken Announce 64-Qubit Quantum Computer

Partners also announce a hybrid quantum algorithm to improve the accuracy of quantum chemistry calculations
John Potter
John Potter

October 11, 2023

A riken quantum computer
Fujitsu and Riken are adding to their quantum computer feet. Riken

Fujitsu and research institute Riken have successfully inaugurated a 64-qubit superconducting quantum computer at the Riken RQC-Fujitsu Collaboration Center. The new machine builds upon the technological foundation established with Japan's first superconducting quantum computer, which was publicly revealed in March 2023.

Fujitsu and Riken are also rolling out a state-of-the-art hybrid quantum computing platform to their research partners and collaborating companies, to accelerate the development and refinement of quantum algorithms.

Fujitsu has combined the powerful 40-qubit quantum computer simulator on a classical platform with the newly built 64-qubit superconducting quantum computer to create a unique hybrid platform. The setup enables users to compare calculation results from current noisy intermediate-scale quantum (NISQ) computers directly against the error-free outcomes generated by quantum simulators. Researchers will use this capability to work on performance evaluation and error

mitigation algorithms in quantum applications.

Fujitsu and Riken have also developed a game-changing hybrid quantum algorithm that combines superconducting quantum computing with traditional high-performance computing. The algorithm improves the accuracy of quantum chemistry calculations, offering a level of precision that far exceeds what is currently achievable with conventional algorithms. The two companies plan to make the algorithm an integral component of the new hybrid platform.

“We anticipate that the ultrafast computing power of quantum computers will provide unprecedented high-precision chemical calculations and will greatly contribute to materials development. Fujifilm will leverage the new hybrid quantum computing platform to research the effects of noise on current quantum computing results. We will also continue to develop innovative materials through the application of quantum computing,” said Fujitsu senior research scientist Yukihiro Okuno.

Fujitsu and Riken plan to implement high-density technology capable of realizing a 1,000-qubit superconducting quantum computer. This technology will allow them to pack more qubits into a smaller space, which will enable them to build more powerful quantum computers.

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