Nanodiamond quantum thermometry assisted with machine learning

Nanodiamonds (NDs) are quantum sensors that enable local temperature measurements, taking advantage of their small size. Though model-based analysis methods have been used for ND quantum thermometry, their accuracy has yet to be thoroughly investigated. Here, we apply model-free machine learning wit...

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Bibliographic Details
Main Authors: Kouki Yamamoto, Kensuke Ogawa, Moeta Tsukamoto, Yuto Ashida, Kento Sasaki, Kensuke Kobayashi
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:Applied Physics Express
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Online Access:https://doi.org/10.35848/1882-0786/adac2a
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Summary:Nanodiamonds (NDs) are quantum sensors that enable local temperature measurements, taking advantage of their small size. Though model-based analysis methods have been used for ND quantum thermometry, their accuracy has yet to be thoroughly investigated. Here, we apply model-free machine learning with the Gaussian process regression (GPR) to ND quantum thermometry and compare its capabilities with the existing methods. We prove that GPR provides more robust results than them, even for a small number of data points and regardless of the data acquisition methods. This study extends the range of applications of ND quantum thermometry with machine learning.
ISSN:1882-0786