DARPA has selected Atom Computing, Diraq, IBM, and IonQ for Stage C of its Quantum Benchmarking Initiative (QBI) to verify the performance of their fault-tolerant quantum computing architectures. This stage involves direct physical testing and empirical validation of their hardware, aiming to assess their potential for utility-scale operation by 2033. The chosen companies represent diverse qubit technologies, including neutral atoms, silicon spin qubits, superconducting transmons, and trapped ions.
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