High-fidelity robust qubit control by phase-modulated pulses

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 provide an expe...

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Bibliographic Details
Main Authors: Marko Kuzmanović, Isak Björkman, John J. McCord, Shruti Dogra, Gheorghe Sorin Paraoanu
Format: Article
Language:English
Published: American Physical Society 2024-02-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.6.013188
Description
Summary: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 provide an experimental proof-of-concept of these operations by using a transmon qubit, demonstrating resilience against deviations in the drive amplitude of more than ≈20%, and/or detuning from the qubit transition frequency in the order of 10MHz. This modulation scheme is straightforward to implement in practice and can be deployed to any other qubit-based experimental platform.
ISSN:2643-1564