OptQC and NTT Sign Capital Alliance to Build 1-Million-Qubit Optical Quantum Computer

OptQC and NTT Sign Capital Alliance to Build 1-Million-Qubit Optical Quantum Computer Tokyo-based optical quantum startup OptQC Corp. and telecommunications giant NTT, Inc. have signed a capital and business alliance agreement to accelerate the development and commercialization of a fault-tolerant, 1-million-qubit-class optical quantum computer. Under the agreement, NTT will make a strategic equity investment in OptQC to establish a medium- to long-term collaborative framework spanning hardware architecture design, supply chain development, and real-world enterprise implementation. The alliance expands upon a initial research collaboration signed in November 2025. As part of the renewed agreement, the two organizations have launched a joint research project running through fiscal year 2027 to establish the architectural design and core component technologies required for a 1-million-qubit system. Research will focus on scaling physical qubit counts using wavelength-division multiplexing (WDM), designing fault-tolerant optical architectures, and integrating NTT’s optical communications, data center, and IOWN (Innovative Optical and Wireless Network) technologies with OptQC’s continuous-variable photonic quantum computing platform. [ OptQC & NTT Technology & Commercialization Roadmap ] │ ┌───────────────────────────────────────────────┼───────────────────────────────────────────────┐ ▼ ▼ ▼ FY2026–FY2027 FY2028 FY2029–FY2030 • System Architecture & WDM Design • 10,000-Qubit Prototype Verification • Integrated Quantum-Classical Software • Quantum Light Source & Amplification • Customer Proof-of-Concept (PoC) Projects • Fault-Tolerant 1M-Qubit Platform • Supply Chain & Co-Creation Partnerships • Hardware Deployment at Data Center Hubs • Commercial Use Case Rollouts The companies outlined a phased business and technology roadmap targeting full 1-million-qubit fault tolerance by FY2030: FY2026–FY2027: Complete the system architecture and key component designs for the 1-million-qubit platform; initiate co-creation projects with prospective enterprise users; and construct a domestic supply chain for photonic components. FY2028: Deploy a 10,000-qubit-class optical quantum system to conduct Proof-of-Concept (PoC) projects with industry partners across finance, manufacturing, and energy sectors. FY2029: Release a unified software platform enabling hybrid quantum-classical computing execution and validate end-user applications. FY2030: Realize a fault-tolerant, 1-million-qubit-class optical quantum computer for commercial production. Spun out of the University of Tokyo’s Furusawa Laboratory in 2024, OptQC operates its first optical quantum processing unit, “MoQuren,” at the National Institute of Advanced Industrial Science and Technology’s (AIST) G-QuAT facility, serving as a key module for Japan’s ABCI-Q quantum-classical hybrid infrastructure. By leveraging room-temperature optical entanglement, time-domain multiplexing, and NTT’s optical amplification and wave-guided light sources, the alliance aims to overcome cryogenic and scaling barriers inherent to solid-state modalities. Review the official partnership announcement on OptQC News here, inspect technology details via the NTT Insights Hub here, read operational updates on AIST G-QuAT here, and examine our previous coverage of NTT and OptQC’s 1-Million-Qubit Optical Quantum Computer Collaboration here. August 4, 2026 Mohamed Abdel-Kareem2026-08-04T02:34:34-07:00 Leave A Comment Cancel replyComment Type in the text displayed above Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.