Date: September 20, 2025
Executive Summary
Quantum computing and AI hardware are both leaping forward this week in ways that could matter deeply for entrepreneurs. A UK startup called Quantum Motion has built a full-stack quantum computer entirely out of standard silicon chips—something that promises to make quantum more manufacturable and scalable. At the same time, PsiQuantum raised $1 billion in Series E funding and jumped its valuation to $7 billion, while partnering with Nvidia to accelerate its photonic-based quantum hardware.
What this means: the race is accelerating. Those who scale up infrastructure, align with hardware innovation, or provide services around quantum or AI-native chips stand to benefit, but laggards risk being squeezed out by hardware bottlenecks or cost disadvantages.
The Full Article
When tech moves this fast, it's easy to miss the stones being laid in the foundation. But right now, the foundations of AI and quantum hardware are being poured in real time—and that’s exciting for founders, investors, and practitioners.
A Silicon Quantum Computer That Uses Off-the-Shelf Chip Tech
Quantum Motion, a UK spinout from Oxford and UCL, just unveiled what it's calling the “silicon moment” in quantum computing: a full-stack quantum compute system built using standard CMOS (complementary metal–oxide-semiconductor) chip technology. That’s the same tech used in everything from your laptop’s processor to the camera in your phone. The device, which occupies three standard 19-inch server racks, has been installed at the UK’s National Quantum Computing Centre. While performance metrics like number of qubits, gate fidelity, error rates, and coherence times are not yet public, what’s important here is the shift in manufacturability. (Tom's Hardware)
Why this matters: many quantum systems are built using esoteric materials or techniques that make scale-up difficult. If you can use the kinds of chips that are already in mass production, you reduce cost, supply-chain risk, and complexity. That opens the door for more startups, more labs, and more integration of quantum into existing infrastructure. In other words: quantum might become more like “another rack in the data center” instead of “an exotic device in a lab.”

PsiQuantum’s $1B + Photonics Gambit
Meanwhile, PsiQuantum has closed a $1 billion funding round, pushing its valuation to $7 billion. Investors like BlackRock, Temasek, Baillie Gifford, and Nvidia’s VC arm are all in. (Reuters)
PsiQuantum’s approach is photonic quantum computing. Rather than using superconducting qubits or trapped ions, it uses light (photons) manipulated on silicon photonic chips. The use of photons has advantages: lower power costs, the possibility of higher operating temperatures, and ease of integrating with existing optical networks. PsiQuantum also announced a partnership with Nvidia to better integrate its hardware with software and chip tooling, which is critical for moving from prototype to product. (Reuters)
Implications for Business & Entrepreneurship
These developments aren’t abstract. They map to real business consequences in at least three areas:
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Hardware-driven competitive pressures:
As quantum hardware becomes more manufacturable (silicon-based, photonic, etc.), the barriers to entry fall. What once required bespoke labs and specialized skillsets may move toward more standardized supply-chains. Companies that depend on quantum for innovation (quantum software providers, AI + quantum hybrids, cryptography, sensors) will need to either partner with or develop access to this hardware (or risk falling behind).
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New opportunities in adjacent infrastructure:
Anyone building tools around deployment, error correction, cooling, chip packaging, optical interconnects, quantum-safe encryption, or software that runs on varying quantum architectures has a juicy potential market. The hardware race pushes outwards: your startup may not build the quantum chip itself, but could build the tooling for it (monitoring, reliability, integration).
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Speed & scale become differentiators:
PsiQuantum’s funding means more resources to scale, test larger systems, refine reliability, and partner with foundries. For early-stage ventures, the question won’t simply be “Can we build something?” but “Can we build it fast, reliably, affordably?” Those who can scale their hardware / software stacks will win more trust and capital.

Risks & What to Watch
Even with all this momentum, some challenges remain:
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Error rates, coherence, and gate fidelity: Even sintered silicon quantum computers or photonic systems must still demonstrate that they can maintain qubit states long enough, do operations accurately, and scale without noise overwhelming the system.
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Manufacturing & supply chain complexity: Using standard silicon helps, but there are still unique needs in quantum systems (cryogenics, optical components, precision calibration, etc.) that are difficult to mass manufacture.
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Regulatory and standards uncertainty: As quantum hardware becomes more common, standards for safety, encryption, verification, and certification will become hotspots. Being ahead of regulation will matter.
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Talent & specialized skill shortages: Quantum engineering remains hard, and finding people who can work at the intersection of quantum physics, chip manufacturing, and software integration is tough.
The future is moving from “quantum is theoretical” to “quantum is infrastructure.” Quantum Motion’s silicon-based quantum machine and PsiQuantum’s photonic chip efforts are milestones that suggest quantum hardware is entering a phase of scaling and manufacturability. For entrepreneurs, this means it's time to decide whether you will build on top of this wave, support it, or be disrupted by it.
If you’re building quantum software, AI-quantum hybrids, next-gen cryptography, or tools to support quantum infrastructure—look closely at what this hardware enables. If you’re in more traditional sectors, think ahead: quantum isn’t just for labs anymore; it's creeping into everything that deals with computation, encryption, or data at scale.
Further Reading
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Quantum Motion unveils full-stack silicon quantum computer using standard chip tech. (Tom's Hardware)
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PsiQuantum raises $1B, partners with Nvidia, aims for photonic quantum scale-up. (Reuters)
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McKinsey “Quantum Technology Monitor 2025” — mapping the trends in quantum investment and commercial readiness. (McKinsey & Company)
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