A dual-rail logical qubit built from the two modes of a fixed-frequency multimode transmon shows error-detected bit-flip and phase-flip lifetimes 48x and 11x longer than the underlying physical modes.
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Error-detected coherence metrology of a dual-rail encoded fixed-frequency multimode superconducting qubit
A dual-rail logical qubit built from the two modes of a fixed-frequency multimode transmon shows error-detected bit-flip and phase-flip lifetimes 48x and 11x longer than the underlying physical modes.