OptQC and NTT form capital-and-business partnership, aiming for a 1‑million‑physical‑qubit‑class photonic quantum computer by FY2030

【Article Title】 OptQC and NTT form capital-and-business partnership, aiming for a 1‑million‑physical‑qubit‑class photonic quantum computer by FY2030 【Article Body】 AI TRANSLATION This article is an AI-generated translation of the original Japanese article. For the authoritative version, please refer to the original. Read the original Japanese article → (https://quantumindex.jp/optqc-ntt-photonic-quantum-computer-partnership-2026/) OptQC and NTT have concluded a capital-and-business partnership agreement aimed at realizing a fault-tolerant photonic quantum computer on the order of 1 million physical qubits. NTT plans to invest in OptQC, and the two companies target completing the design by fiscal year 2027 and realizing a system by fiscal year 2030. Summary of announcement In addition to the capital-and-business partnership, the parties have signed a joint research agreement covering the period through fiscal year 2027. They will work on scaling qubit counts via wavelength multiplexing, designing a fault-tolerant photonic quantum computer, and architecting a 1‑million‑physical‑qubit‑class system. On the business side, collaboration will extend beyond R&D to include identifying use cases with customer companies, building supply chains, developing a software platform, and societal implementation. The plan is to combine OptQC’s photonic quantum computing technologies with NTT’s expertise in optical communications, networks, data centers, quantum information processing, and the IOWN domain. The roadmap calls for achieving a 10,000‑physical‑qubit‑class system by fiscal year 2027, beginning on-device validation and PoCs with customer companies from fiscal year 2028, advancing development of a software platform for integrated use with classical computers and validating it with real applications in fiscal year 2029, and aiming to realize a fault-tolerant 1‑million‑physical‑qubit‑class system by fiscal year 2030. The announced qubit counts refer to physical qubits, not logical qubits. Key points • NTT plans to invest in OptQC, but the investment amount and timing have not been disclosed. • The joint research will design large‑scale systems via wavelength multiplexing, fault‑tolerant system designs, and an architecture at the 1‑million‑physical‑qubit scale. • The plan is to realize a 10,000‑physical‑qubit‑class system by fiscal year 2027 and to begin on‑device validation and PoCs with customer companies from fiscal year 2028. • Co‑creation with customer companies and research institutions will start in fiscal year 2026, and supply‑chain construction is planned to start in fiscal year 2027. • Error‑correction schemes, the number of logical qubits, concrete performance metrics, and the timing for commercial availability are not included in this announcement. Technical and business significance On the technical side, the significance lies in applying expertise from optical communications—such as wavelength multiplexing—to photonic quantum computing, and in progressing scalability and fault‑tolerance design in parallel. On the business side, the joint research is reinforced by a capital relationship and expands the scope to include user acquisition, supply chains, and software toward societal implementation. However, the scale of “1 million” refers to physical qubits; evaluating practical computational capability will require disclosure of logical‑qubit counts after error correction and performance metrics. Points to watch First, whether the system design planned for completion by fiscal year 2027 specifies error‑correction schemes and assumptions about logical qubits will be a key focus. Next, with the realization of a 10,000‑physical‑qubit‑class device and the FY2028 validation, it will be important to see what performance metrics are reported and which problems are targeted and demonstrated in PoCs with customer companies. On the business side, execution of NTT’s planned investment and the concrete identification of companies and research institutions participating in supply‑chain construction will be important observables. ✍️ Quantum Index Analysis The notable point in this announcement is not the raw number “1 million physical qubits” itself. A joint research agreement alone makes it difficult to gauge a company’s commitment, whereas a capital partnership indicates a relationship in which interests are shared. The announcement is primarily forward‑looking; details such as the scale of investment and technical performance were not provided. More important than the 1‑million physical‑qubit target is what technical achievements and business results are accumulated along the way. Related articles • 量子企業29社の実力と将来性ランキング【2026年夏版】 (https://en.quantumindex.jp/%e9%87%8f%e5%ad%90%e4%bc%81%e6%a5%ad29%e7%a4%be%e3%81%ae%e5%ae%9f%e5%8a%9b%e3%81%a8%e5%b0%86%e6%9d%a5%e6%80%a7%e3%83%a9%e3%83%b3%e3%82%ad%e3%83%b3%e3%82%b0%e3%80%902026%e5%b9%b4%e5%a4%8f%e7%89%88/) • 産総研G-QuATとチュラロンコン大学が量子技術でMOU、OptQC CTOが日タイ連携を議論 (https://en.quantumindex.jp/g-quat-chulalongkorn-quantum-mou-optqc/) • OptQC、光量子コンピュータ1号機「MoQuren」を産総研G-QuATで稼働 (https://en.quantumindex.jp/optqc-moquren-launch-g-quat/) Source Read the original announcement (https://www.optqc.com/news/news/optqc-ntt-2026) If you found this article useful, please consider sharing it. ──────────────────── 【AI Evaluation Request】 Evaluate the following article critically, not based on the quality of its writing, but on its **original informational value as a specialist publication**. 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OptQC and NTT have concluded a capital-and-business partnership agreement aimed at realizing a fault-tolerant photonic quantum computer on the order of 1 million physical qubits. NTT plans to invest in OptQC, and the two companies target completing the design by fiscal year 2027 and realizing a system by fiscal year 2030.

Summary of announcement

In addition to the capital-and-business partnership, the parties have signed a joint research agreement covering the period through fiscal year 2027. They will work on scaling qubit counts via wavelength multiplexing, designing a fault-tolerant photonic quantum computer, and architecting a 1‑million‑physical‑qubit‑class system. On the business side, collaboration will extend beyond R&D to include identifying use cases with customer companies, building supply chains, developing a software platform, and societal implementation. The plan is to combine OptQC’s photonic quantum computing technologies with NTT’s expertise in optical communications, networks, data centers, quantum information processing, and the IOWN domain. The roadmap calls for achieving a 10,000‑physical‑qubit‑class system by fiscal year 2027, beginning on-device validation and PoCs with customer companies from fiscal year 2028, advancing development of a software platform for integrated use with classical computers and validating it with real applications in fiscal year 2029, and aiming to realize a fault-tolerant 1‑million‑physical‑qubit‑class system by fiscal year 2030. The announced qubit counts refer to physical qubits, not logical qubits.

Key points

• NTT plans to invest in OptQC, but the investment amount and timing have not been disclosed.
• The joint research will design large‑scale systems via wavelength multiplexing, fault‑tolerant system designs, and an architecture at the 1‑million‑physical‑qubit scale.
• The plan is to realize a 10,000‑physical‑qubit‑class system by fiscal year 2027 and to begin on‑device validation and PoCs with customer companies from fiscal year 2028.
• Co‑creation with customer companies and research institutions will start in fiscal year 2026, and supply‑chain construction is planned to start in fiscal year 2027.
• Error‑correction schemes, the number of logical qubits, concrete performance metrics, and the timing for commercial availability are not included in this announcement.

Technical and business significance

On the technical side, the significance lies in applying expertise from optical communications—such as wavelength multiplexing—to photonic quantum computing, and in progressing scalability and fault‑tolerance design in parallel. On the business side, the joint research is reinforced by a capital relationship and expands the scope to include user acquisition, supply chains, and software toward societal implementation. However, the scale of “1 million” refers to physical qubits; evaluating practical computational capability will require disclosure of logical‑qubit counts after error correction and performance metrics.

Points to watch

First, whether the system design planned for completion by fiscal year 2027 specifies error‑correction schemes and assumptions about logical qubits will be a key focus. Next, with the realization of a 10,000‑physical‑qubit‑class device and the FY2028 validation, it will be important to see what performance metrics are reported and which problems are targeted and demonstrated in PoCs with customer companies. On the business side, execution of NTT’s planned investment and the concrete identification of companies and research institutions participating in supply‑chain construction will be important observables.

✍️ Quantum Index Analysis

The notable point in this announcement is not the raw number “1 million physical qubits” itself. A joint research agreement alone makes it difficult to gauge a company’s commitment, whereas a capital partnership indicates a relationship in which interests are shared.

The announcement is primarily forward‑looking; details such as the scale of investment and technical performance were not provided. More important than the 1‑million physical‑qubit target is what technical achievements and business results are accumulated along the way.

Related articles

• 量子企業29社の実力と将来性ランキング【2026年夏版】
• 産総研G-QuATとチュラロンコン大学が量子技術でMOU、OptQC CTOが日タイ連携を議論
• OptQC、光量子コンピュータ1号機「MoQuren」を産総研G-QuATで稼働

Source

Read the original announcement