Quantum Computing Reaches Historic Turning Point: Moving Beyond 'Physical Experiments' to Supply Chain and Manufacturing as Key Determinants

Jefferies issued a significant assessment after attending the Quantum World Congress: the core challenges in the industry have shifted from 'creating good quantum bits' to 'building truly usable computers', with competitive advantages moving from innovations in physics to barriers in systems engineering and manufacturing.

Written by: Zhao Ying, Wall Street Insights

The quantum computing industry is undergoing a profound paradigm shift. Jefferies believes that the core challenge has transitioned from 'whether good quantum bits can be created' to 'whether these quantum bits can be used to build a truly usable computer'. This shift signifies that the focus of competitive advantage is moving from pure physics innovation to comprehensive migration towards systems engineering, manufacturing control, and ecosystem layout.

According to the Chase Wind Trading Desk, Jefferies' analyst team released a report after attending the Quantum World Congress (QWC), stating that the industry's 'scoreboard' is being rewritten: logical quantum bit performance, error correction overhead, circuit depth, decoding latency, network interconnectivity, and system-level integration have become the core metrics for measuring progress. Meanwhile, the U.S. Department of Energy's project office is leading the establishment of unified measurement standards, with the government's role evolving from a fund provider to an industry rule-maker.

The report also pointed out that the National Quantum Initiative Reauthorization Act (NQI Reauthorization Act) is expected to pass soon, which will serve as a positive catalyst for companies already holding federal contracts, including D-Wave Quantum (QBTS), Quantinuum (QNT), and Rigetti Computing (RGTI).

The implications of this shift for investors are clear and direct: companies that can establish barriers in repeatable manufacturing, supply chain resilience, and system integration capabilities will gain an advantage in the commercialization race. Jefferies maintains an overall positive rating for the quantum sector, believing that the industry's transition to quantifiable, system-level milestones is providing investors with a clearer path to commercialization.

Government Reshaping Industry Standards, Federal Funding Linked to Performance

The quantum industry has long lacked a unified evaluation framework, but this situation is changing.

Jefferies' report indicates that classical computers experience an error approximately once every 10¹⁶ operations, while the complete fault tolerance target in the quantum field is currently defined at the 10⁶ level, with 10⁹ still considered a high standard. The gap between 'logical quantum bits existing' and 'logical quantum bits outperforming physical quantum bits' remains the true state of the field.

The significance of government intervention lies in breaking the convention of self-certification by companies. Third-party projects now require companies to provide data on logical error rates, gate fidelity, fault-tolerant operations, circuit depth, and effective scientific workloads, making it difficult for companies to rely on self-selected benchmarks to pass muster. The funding model is also changing—initial capital is used for tool construction, while the remainder must meet R&D milestones to be unlocked.

Notably, commercial validation is now pulling government demand in reverse, rather than the previous government-led model. An executive order issued in June this year has brought previously unassessed buyers of quantum technology into the market. The National Quantum Initiative Reauthorization Act further requires the formulation of an international quantum cooperation strategy, incorporating the State Department into a cross-agency task force and extending authorization to 2034. Jefferies believes that the supply chain provisions in the bill directly support IonQ (IONQ) in advancing its vertical integration strategy through SkyWater.

Rise of Distributed Architectures, Quantum Networks Moving from Concept to Reality

The issue of scaling single quantum processors has become one of the most concentrated topics of discussion at this year's QWC.

Jefferies' report notes that as constraints such as control complexity, cooling requirements, wiring, laser transmission, calibration, yield, crosstalk, and physical size become increasingly apparent, more and more companies expect that the ultimate solution will involve multi-processor network interconnectivity—similar to how classical computing clusters are formed through high-speed networks.

This architectural shift is significant for reshaping the value chain. Standalone machines concentrate value in quantum bits, control systems, low-temperature cooling, and software; whereas distributed machines introduce new infrastructure layers such as quantum storage, converters, photonic interconnects, switching, entanglement distribution, network control, and distributed compilation. Jefferies believes that IonQ, with its ongoing investments in network interconnectivity and photonic interconnects, is a major beneficiary of this trend.

Meanwhile, the heterogeneous architecture of CPU + GPU + QPU has been recognized by QWC as the most likely end state. IonQ announced that its Superion 256 system will connect directly to NVIDIA GB200 NVL72 via NVQLink, and QNT's tech stack follows this logic, supporting the simultaneous operation of classical and quantum code, with the classical part executed on the GPU. This architecture embeds quantum computing into existing high-performance computing and data center ecosystems, rather than requiring companies to start from scratch, significantly lowering the barriers to commercialization.

Manufacturing and Supply Chain Become Core Competitive Variables

The competitive focus of quantum computing is shifting from laboratories to factory floors.

Jefferies cites a global supply chain study covering 160 quantum companies, showing that 90% of companies rely on at least one overseas supplier, and 74% serve overseas customers. As QPU production scales from 5 units to 50 units and even thousands, repeatable manufacturing, packaging processes, component availability, and laser stability will become key differentiators.

Supply chain bottlenecks are divided into two categories: first, quantum-specific components, which are scarce, with some segments effectively in a single-source state; second, standard electronic components, where the main issue is delivery cycles. Key minerals such as indium and gallium are insufficiently produced domestically in the U.S., while fibers, lenses, and micro-optical devices lead quantum companies to compete directly with hyperscale cloud service providers for commodity supplies. The report particularly notes that talent is the most challenging bottleneck in the supply chain.

In terms of coping strategies, Jefferies believes that Quantinuum, IonQ, and Rigetti Computing have relative advantages. Quantinuum has established a credible mass production path through long-term supplier relationships and structured manufacturing collaborations, without bearing the pressure of heavy asset self-built capacity; IonQ has achieved vertical integration through the acquisition of SkyWater to control its technology roadmap and accelerate iteration speed; Rigetti Computing also has its own wafer fab, which helps control its roadmap and iteration pace.

Additionally, Jefferies is optimistic about investment opportunities in the quantum 'infrastructure' layer. Low-temperature cooling infrastructure is a significant theme in this year's conference exhibition, and the report predicts that advancements in low-temperature CMOS, high-density I/O, multiplexing, packaging, and automated testing will create substantial opportunities for traditional semiconductor and equipment suppliers.

Commercialization progress is reflected at QWC and provides phased support for the industry's long-term narrative. Quantinuum announced that it will deploy a Superion 256 system on the campus of Florida International University (FIU), effectively validating the localized system sales model. D-Wave Quantum (QBTS) announced a partnership with CGI to incorporate its Advantage2 system and hybrid solver into CGI's product portfolio. Jefferies points out that QBTS already possesses advantages that most gate model suppliers lack—a ready-to-use system that customers can utilize for some optimization workloads today.

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