Random-telegraph noise mitigation and qubit decoherence in solid-state experiments
Issued Date
2023-01-01
Resource Type
ISSN
17426588
eISSN
17426596
Scopus ID
2-s2.0-85147985612
Journal Title
Journal of Physics: Conference Series
Volume
2431
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Physics: Conference Series Vol.2431 No.1 (2023)
Suggested Citation
Kamjam N., Pathumsoot P., Chantasri A. Random-telegraph noise mitigation and qubit decoherence in solid-state experiments. Journal of Physics: Conference Series Vol.2431 No.1 (2023). doi:10.1088/1742-6596/2431/1/012102 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/82256
Title
Random-telegraph noise mitigation and qubit decoherence in solid-state experiments
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
We investigate the recently proposed theoretical models and algorithms in Song et al. [1] for mitigating decoherence in solid-state qubit systems, where qubits are affected by charge (random telegraph) noises. The model includes a setup of a logical qubit (data qubit) and a spectator qubit, where the latter is used as a probe of the noise. The probe results can be used in correcting the phase error in order to improve the decoherence of the data qubit. In this work, we apply the proposed model with parameters extracted from recent solid-state qubit experiments. We extract parameters such as the noise switching rates, the qubit sensitivities to noise, and the measurement dead time. Using these parameters, we then numerically simulate the data qubit's phase and the qubit decoherence. We also show that the proposed phase-correction technique using Bayesian estimation can improve the data qubit decoherence significantly.