The geopolitics of quantum computing. China and the US are in a race that has no finish line and both sides know it.

[Brittle Ronan]

The Quantum Insider published analysis this week noting that quantum computing is one of the rare technologies where geopolitics and physics have become genuinely inseparable. China is not building quantum computers purely because the technology is commercially interesting. The national security implications of quantum-enabled cryptanalysis, quantum sensing for navigation and detection, and quantum communication for secure military networks make this a strategic priority at state level.

The US response has been the CHIPS Act quantum investment, DARPA's Quantum Benchmarking Initiative, export controls on advanced chips, and the NSA's CNSA 2.0 migration mandate. The EU has responded with EuroHPC quantum infrastructure and the Quantum Flagship programme. Neither the US nor the EU has matched China's state-directed investment levels but both are accelerating

[Wendy5]

The quantum curtain framing from GQI's 2026 predictions is the right one. A world where US-allied quantum vendors and Chinese quantum vendors serve different markets with limited technical interchange is the direction of travel

[TheGame_Fan]

China's satellite-based QKD network spanning 2,000 kilometres is the demonstration that they have already deployed quantum-secured communication infrastructure at a scale no Western country has matched

[StringTheory83]

Export controls on classical AI chips accelerating Chinese domestic semiconductor development is the lesson being applied to quantum proactively. The quantum chip control regime is being established before it is needed

[Northernah]

The DARPA Quantum Benchmarking Initiative Stage C selection later in 2026 will be the US government's most explicit statement about which hardware approaches it believes are viable

[Coder65]

EuroHPC's strategy of deploying multiple qubit architectures across five countries is the sovereignty play that accepts neither US nor Chinese supply chain dependence. Expensive but coherent

[NeonPhantom39]

The quantum arms race analogy is imperfect but useful. Like nuclear, the capability itself is the deterrent as much as any specific application. A credible quantum computer changes what adversaries believe you can do