Helios achieves 98 qubits with single-qubit gate infidelity 2.5(1)×10^{-5}, two-qubit 7.9(2)×10^{-4}, and SPAM 4.8(6)×10^{-4}, enabling circuits beyond classical simulation.
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Computational complexity of random multi-qudit states and unitaries scales exponentially with qudit number, while physical complexity scales more slowly.
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Helios: A 98-qubit trapped-ion quantum computer
Helios achieves 98 qubits with single-qubit gate infidelity 2.5(1)×10^{-5}, two-qubit 7.9(2)×10^{-4}, and SPAM 4.8(6)×10^{-4}, enabling circuits beyond classical simulation.
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Computational and physical complexity of synthesizing random multi-qudit quantum states and unitary operators
Computational complexity of random multi-qudit states and unitaries scales exponentially with qudit number, while physical complexity scales more slowly.