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Deterministic quantum computation with one qubit (DQC1) is iconic inhighlighting that exponential quantum speedup may be achieved with negligibleentanglement. Its discovery catalyzed heated study of general quantumresources, and various conjectures regarding their role in DQC1's performanceadvantage. Coherence and discord are prominent candidates, respectivelycharacterizing non-classicality within localized and correlated systems. Herewe realize DQC1 within a superconducting system, engineered such that thedynamics of coherence and discord can be tracked throughout its execution. Weexperimentally confirm that DQC1 acts as a resource converter, consumingcoherence to generate discord during its operation. Our results highlightsuperconducting circuits as a promising platform for both realizing DQC1 andrelated algorithms, and experimentally characterizing resource dynamics withinquantum protocols.

Witnessing quantum resource conversion within deterministic quantum computation using one pure superconducting qubit