Random-telegraph noise mitigation and qubit decoherence in solid-state experiments
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 th...
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th-mahidol.822562023-05-19T14:55:47Z Random-telegraph noise mitigation and qubit decoherence in solid-state experiments Kamjam N. Mahidol University Physics and Astronomy 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. 2023-05-19T07:55:47Z 2023-05-19T07:55:47Z 2023-01-01 Conference Paper Journal of Physics: Conference Series Vol.2431 No.1 (2023) 10.1088/1742-6596/2431/1/012102 17426596 17426588 2-s2.0-85147985612 https://repository.li.mahidol.ac.th/handle/123456789/82256 SCOPUS |
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Physics and Astronomy Kamjam N. Random-telegraph noise mitigation and qubit decoherence in solid-state experiments |
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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. |
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Mahidol University |
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Mahidol University Kamjam N. |
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Conference or Workshop Item |
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Kamjam N. |
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Kamjam N. |
title |
Random-telegraph noise mitigation and qubit decoherence in solid-state experiments |
title_short |
Random-telegraph noise mitigation and qubit decoherence in solid-state experiments |
title_full |
Random-telegraph noise mitigation and qubit decoherence in solid-state experiments |
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Random-telegraph noise mitigation and qubit decoherence in solid-state experiments |
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Random-telegraph noise mitigation and qubit decoherence in solid-state experiments |
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random-telegraph noise mitigation and qubit decoherence in solid-state experiments |
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2023 |
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https://repository.li.mahidol.ac.th/handle/123456789/82256 |
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1781415192766185472 |