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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.08940 |
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| _version_ | 1866918180967940096 |
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| author | Bate, James Hamann, Arne Canteri, Marco Winkler, Armin Koong, Zhe Xian Krutyanskiy, Victor Dür, Wolfgang Lanyon, Benjamin Peter |
| author_facet | Bate, James Hamann, Arne Canteri, Marco Winkler, Armin Koong, Zhe Xian Krutyanskiy, Victor Dür, Wolfgang Lanyon, Benjamin Peter |
| contents | The precision advantages offered by harnessing the quantum states of sensors can be readily compromised by noise. However, when the noise has a different spatial function than the signal of interest, recent theoretical work shows how the advantage can be maintained and even significantly improved. In this work we experimentally demonstrate the associated sensing protocol, using trapped-ion sensors. An entangled state of multi-dimensional sensors is created that isolates and optimally detects a signal, whilst being insensitive to otherwise overwhelming noise fields with different spatial profiles over the sensor locations. The quantum protocol is found to outperform a perfect implementation of the best comparable strategy without sensor entanglement. While our demonstration is carried out for magnetic and electromagnetic fields over a few microns, the technique is readily applicable over arbitrary distances and for arbitrary fields, thus present a promising application for emerging quantum sensor networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_08940 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Experimental distributed quantum sensing in a noisy environment Bate, James Hamann, Arne Canteri, Marco Winkler, Armin Koong, Zhe Xian Krutyanskiy, Victor Dür, Wolfgang Lanyon, Benjamin Peter Quantum Physics The precision advantages offered by harnessing the quantum states of sensors can be readily compromised by noise. However, when the noise has a different spatial function than the signal of interest, recent theoretical work shows how the advantage can be maintained and even significantly improved. In this work we experimentally demonstrate the associated sensing protocol, using trapped-ion sensors. An entangled state of multi-dimensional sensors is created that isolates and optimally detects a signal, whilst being insensitive to otherwise overwhelming noise fields with different spatial profiles over the sensor locations. The quantum protocol is found to outperform a perfect implementation of the best comparable strategy without sensor entanglement. While our demonstration is carried out for magnetic and electromagnetic fields over a few microns, the technique is readily applicable over arbitrary distances and for arbitrary fields, thus present a promising application for emerging quantum sensor networks. |
| title | Experimental distributed quantum sensing in a noisy environment |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2501.08940 |