Engineering Fast High-Fidelity Quantum Operations With Constrained Interactions

Figueiredo Roque, Thales; Clerk, Aashish A; Ribeiro, Hugo

doi:10.1038/s41534-020-00349-z

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Engineering Fast High-Fidelity Quantum Operations With Constrained Interactions

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Figueiredo Roque, Thales
Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Ribeiro, Hugo
Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Figueiredo Roque, T., Clerk, A. A., & Ribeiro, H. (2021). Engineering Fast High-Fidelity Quantum Operations With Constrained Interactions. npj Quantum Information, 7: 28. doi:10.1038/s41534-020-00349-z.

Cite as: https://hdl.handle.net/21.11116/0000-0005-F6D5-5

Abstract

Understanding how to tailor quantum dynamics to achieve a desired evolution is a crucial problemin almost all quantum technologies. We present a very general method for designing high-efficiencycontrol sequences that are always fully compatible with experimental constraints on available inter-actions and their tunability. Our approach reduces in the end to finding control fields by solvinga set of time-independent linear equations. We illustrate our method by applying it to a numberof physically-relevant problems: the strong-driving limit of a two-level system, fast squeezing in aparametrically driven cavity, the leakage problem in transmon qubit gates, and the acceleration ofSNAP gates in a qubit-cavity system.