Six modalities, one checkbook: Commerce refuses to pick a qubit winner

The most revealing detail in the CHIPS Act quantum package is not the dollar figure but the spread. Commerce funded superconducting (IBM, Rigetti, D-Wave), trapped-ion (Quantinuum), neutral-atom (Atom Computing, Infleqtion), silicon-spin (Diraq), photonic (PsiQuantum), and through the GlobalFoundries foundry, topological architectures in a single announcement [5]. That is every commercially credible qubit modality on Earth, funded simultaneously. Bill Frauenhofer, who runs semiconductor investment at the CHIPS R&D Office, framed this explicitly: "The CHIPS R&D Office is taking a portfolio approach to strengthen and accelerate U.S. leadership across multiple quantum modalities at once." [1]
This is an unusual posture for a U.S. industrial policy that historically prefers anointing a national champion. The reading: nobody, not Commerce, not IBM, not the venture community, knows which modality will scale to fault-tolerant quantum computing first. Superconducting has the most qubits today but suffers coherence-time ceilings; neutral atoms promise tens of thousands of qubits but lag on gate fidelity; photonics need cryogenic single-photon detectors that don't quite exist at scale; silicon-spin would inherit the entire CMOS supply chain if it works. By splitting $2B across all of them and capping individual hardware bets at $100M, the federal government is functionally writing seed checks on a venture risk profile. Diraq's $38M for CMOS-native silicon-spin scaling, the smallest award but the one most likely to ride GlobalFoundries' fab infrastructure, is the cleanest example of optionality buying [8].



