| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2023-05-29 |
| タイトル |
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|
タイトル |
Low frequency quantum sensing |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
E. D. Herbschleb
Ohki Izuru
K. Morita
Y. Yoshii
H. Kato
T. Makino
S. Yamasaki
N. Mizuochi
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
Exquisite sensitivities are a prominent advantage of quantum sensors. Ramsey sequences allow precise measurement of direct current fields, while Hahn-echo-like sequences measure alternating current fields. However, the latter are restrained for use with high-frequency fields (above approximately 1 kHz) due to finite coherence times, leaving less-sensitive noncoherent methods for the low-frequency range. In this paper, we propose to bridge the gap with a fitting-based algorithm with a frequency-independent sensitivity to coherently measure low-frequency fields. As the algorithm benefits from coherence-based measurements, its demonstration with a single nitrogen-vacancy center gives a sensitivity of 9.4 nT Hz?0.5 for frequencies below about 0.6 kHz down to near-constant fields. To inspect the potential in various scenarios, we apply the algorithm at a background field of tens of nTs, and we measure low-frequency signals via synchronization. |
| 書誌情報 |
Physical Review Applied
巻 18,
号 3,
p. 034058,
発行日 2022-09
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| 出版者 |
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出版者 |
APS physics |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2331-7019 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1103/PhysRevApplied.18.034058 |
