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- W4308590534 abstract "Abstract Superconducting fluxonium qubits provide a promising alternative to transmons on the path toward large-scale superconductor-based quantum computing due to their better coherence and larger anharmonicity. A major challenge for multi-qubit fluxonium devices is the experimental demonstration of a scalable crosstalk-free multi-qubit architecture with high-fidelity single-qubit and two-qubit gates, single-shot readout, and state initialization. Here, we present a two-qubit fluxonium-based quantum processor with a tunable coupler element. We experimentally demonstrate fSim-type and controlled-Z-gates with 99.55 and 99.23% fidelities, respectively. The residual ZZ interaction is suppressed down to the few kHz levels. Using a galvanically coupled flux control line, we implement high-fidelity single-qubit gates and ground state initialization with a single arbitrary waveform generator channel per qubit." @default.
- W4308590534 created "2022-11-12" @default.
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- W4308590534 date "2022-11-08" @default.
- W4308590534 modified "2023-10-18" @default.
- W4308590534 title "High fidelity two-qubit gates on fluxoniums using a tunable coupler" @default.
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- W4308590534 doi "https://doi.org/10.1038/s41534-022-00644-x" @default.
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