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flag NTT and OptQC are developing optical quantum computing for a scalable, energy-efficient system by 2030.

flag NTT is advancing its IOWN initiative with OptQC to develop optical quantum computing, aiming for a scalable system with up to one million qubits by 2030. flag The collaboration targets phased IOWN upgrades starting in 2025, including photonic fusion devices and optical chip-level data transmission, with a long-term goal of 100-fold energy reduction by 2032. flag The progress was unveiled at NTT’s 2025 R&D Forum.

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