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Quantum Simulation
Revealing inadvertent periodic modulation of qubit frequency
arXiv
Authors: Filip Wudarski, Yaxing Zhang, Juan Atalaya, M. I. Dykman
Year
2024
Paper ID
64232
Status
Preprint
Abstract Read
~2 min
Abstract Words
96
Citations
N/A
Abstract
The paper describes the means to reveal and characterize slow periodic modulation of qubit frequency. Such modulation can come from different sources and can impact qubit stability. We show that the modulation leads to very sharp peaks in the power spectrum of outcomes of periodically repeated Ramsey measurements. The positions and shapes of the peaks allow finding both the frequency and the amplitude of the modulation. We also explore how additional slow fluctuations of the qubit frequency and fluctuations of the modulation frequency affect the spectrum. The analytical results are in excellent agreement with extensive simulations.
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- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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- The paper describes the means to reveal and characterize slow periodic modulation of qubit frequency.
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