NTT partners with OptQC to build scalable optical quantum computers

NTT Inc on Tuesday signed an agreement with Tokyo-based OptQC Corp to develop scalable optical quantum computers.

The Tokyo-based telecommunications company said the collaboration aims to accelerate the practical realisation of large-scale, highly reliable quantum systems using optical technologies.

They are targeting the development of a one million qubit optical quantum computer by 2030.

Unlike traditional quantum systems that rely on superconducting circuits or trapped ions, optical quantum computers use photons, which are particles of light, to perform calculations with speed and stability.

NTT will apply its expertise in optical communication technologies, including amplification and multiplexing, while OptQC will bring deep capabilities in optical quantum computing.

NTT said the agreement seeks to create use cases, develop algorithms, and build a supply chain to support future deployment. Both companies see the technology as a potential solution to complex societal challenges.