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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/2504.07236 |
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| _version_ | 1866916682710122496 |
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| author | Kwolek, Jonathan M. Upadhyay, Sunil Black, Adam T. |
| author_facet | Kwolek, Jonathan M. Upadhyay, Sunil Black, Adam T. |
| contents | The utility of inertial sensors depends on resilience against real-world dynamics and noise. Atom interferometry offers a sensing technology with the advantage of good long-term stability, high sensitivity, and accuracy. High measurement bandwidth improves an atom interferometer's ability to reject errors due to dynamics and noise. Here we demonstrate resilience against time-varying environmental noise by rapidly switching the direction of inertial sensitivity in the atom interferometer through a common technique known as k-reversal. We demonstrate sub-interrogation-time k-reversal at 592 Hz in a cold-beam atomic interferometer with an inverse interrogation time of 148 Hz. The interferometer fringe output is read out continuously and post-processed using nonlinear Kalman filters to determine both the inertial and error contributions to the output phase. The resulting power spectral densities show a significant reduction of phase error due to a noisy magnetic field as the k-reversal frequency increases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_07236 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Noise Resilience in a High-Bandwidth Atom Interferometer Kwolek, Jonathan M. Upadhyay, Sunil Black, Adam T. Atomic Physics The utility of inertial sensors depends on resilience against real-world dynamics and noise. Atom interferometry offers a sensing technology with the advantage of good long-term stability, high sensitivity, and accuracy. High measurement bandwidth improves an atom interferometer's ability to reject errors due to dynamics and noise. Here we demonstrate resilience against time-varying environmental noise by rapidly switching the direction of inertial sensitivity in the atom interferometer through a common technique known as k-reversal. We demonstrate sub-interrogation-time k-reversal at 592 Hz in a cold-beam atomic interferometer with an inverse interrogation time of 148 Hz. The interferometer fringe output is read out continuously and post-processed using nonlinear Kalman filters to determine both the inertial and error contributions to the output phase. The resulting power spectral densities show a significant reduction of phase error due to a noisy magnetic field as the k-reversal frequency increases. |
| title | Noise Resilience in a High-Bandwidth Atom Interferometer |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2504.07236 |