Vacuum squeezing enhanced micrometer scale vapor cell magnetometer
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908444498329600 |
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| author | Monsa, Shahar Chasid, Yair Shuldiner, Michael Sternklar, Shmuel Talker, Eliran |
| author_facet | Monsa, Shahar Chasid, Yair Shuldiner, Michael Sternklar, Shmuel Talker, Eliran |
| contents | We report on an optical magnetometer enhanced by vacuum-squeezed light, employing an Mx magnetometer based on $^{87}$Rb vapor in a micrometer-scale cell (~100 $μ$m). Using the well-established polarization self-rotation effect in a room-temperature $^{87}$Rb vapor cell, we achieve -3 dB of vacuum squeezing within the noise spectral window of 100 Hz to several MHz, corresponding to 3.5 dB squeezing when accounting for optical losses. Leveraging this level of squeezing, we demonstrate a magnetic field sensitivity of approx. 1 pT$/$$\sqrt{Hz}$. The combination of vacuum-squeezed light and micrometer-scale vapor cells paves the way for compact, low-power-consumption atomic sensors with enhanced performance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_07672 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Vacuum squeezing enhanced micrometer scale vapor cell magnetometer Monsa, Shahar Chasid, Yair Shuldiner, Michael Sternklar, Shmuel Talker, Eliran Optics Quantum Physics We report on an optical magnetometer enhanced by vacuum-squeezed light, employing an Mx magnetometer based on $^{87}$Rb vapor in a micrometer-scale cell (~100 $μ$m). Using the well-established polarization self-rotation effect in a room-temperature $^{87}$Rb vapor cell, we achieve -3 dB of vacuum squeezing within the noise spectral window of 100 Hz to several MHz, corresponding to 3.5 dB squeezing when accounting for optical losses. Leveraging this level of squeezing, we demonstrate a magnetic field sensitivity of approx. 1 pT$/$$\sqrt{Hz}$. The combination of vacuum-squeezed light and micrometer-scale vapor cells paves the way for compact, low-power-consumption atomic sensors with enhanced performance. |
| title | Vacuum squeezing enhanced micrometer scale vapor cell magnetometer |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2507.07672 |