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arXiv · 2308.13353

High-fidelity robust qubit control by phase-modulated pulses

Marko Kuzmanović·Isak Björkman·John J. McCord·Shruti Dogra·Gheorghe Sorin Paraoanu
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Abstract

We present a set of robust and high-fidelity pulses that realize paradigmatic operations such as the transfer of the ground state population into the excited state and arbitrary $X/Y$ rotations on the Bloch sphere. These pulses are based on the phase modulation of the control field. We implement these operations on a transmon qubit, demonstrating resilience against deviations in the drive amplitude of more than $\approx 20\%$ and/or detuning from the qubit transition frequency in the order of $10~\mathrm{MHz}$. The concept and modulation scheme is straightforward to implement and it is compatible with other quantum-technology experimental platforms.

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Marko Kuzmanović, Isak Björkman, John J. McCord, Shruti Dogra, Gheorghe Sorin Paraoanu. 2023-08-25. High-fidelity robust qubit control by phase-modulated pulses. https://arxiv.org/abs/2308.13353

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