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arXiv · 2105.02398

Compiling Arbitrary Single-Qubit Gates Via the Phase-Shifts of Microwave Pulses

Jianxin Chen·Dawei Ding·Cupjin Huang·Qi Ye
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Abstract

We give an arbitrary single-qubit gate compilation scheme on superconducting processors that takes advantage of tuning the phase shift of microwave pulses to obtain a continuous gate set. This scheme is compatible with any two-qubit gate, and we only need to calibrate the $X_\pi$ and $X_{\pi/2}$ pulses. We implement this on fluxonium and obtain state-of-the-art fidelities. We give two other schemes: the first requires one $X_\pi$ pulse and one pulse with a variable rotation angle, and the second requires four $X_{\pi/2}$ pulses. We also find that if we can do virtual $Z$ gates, then we can also do virtual gates around any axis. Our results apply to any physical platform that natively supports virtual $Z$.

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Jianxin Chen, Dawei Ding, Cupjin Huang, Qi Ye. 2021-05-06. Compiling Arbitrary Single-Qubit Gates Via the Phase-Shifts of Microwave Pulses. https://doi.org/10.1103/physrevresearch.5.l022031

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