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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2407.11246 |
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| _version_ | 1866929626184417280 |
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| author | Wang, Yiping Glick, Jonah Deshpande, Tejas DeRose, Kenneth Saraf, Sharika Sachdeva, Natasha Jiang, Kefeng Chen, Zilin Kovachy, Tim |
| author_facet | Wang, Yiping Glick, Jonah Deshpande, Tejas DeRose, Kenneth Saraf, Sharika Sachdeva, Natasha Jiang, Kefeng Chen, Zilin Kovachy, Tim |
| contents | We introduce a novel technique for enhancing the robustness of light-pulse atom interferometers against the pulse infidelities that typically limit their sensitivities. The technique uses quantum optimal control to favorably harness the multipath interference of the stray trajectories produced by imperfect atom-optics operations. We apply this method to a resonant atom interferometer and achieve thousand-fold phase amplification, representing a fifty-fold improvement over the performance observed without optimized control. Moreover, we find that spurious interference can arise from the interplay of spontaneous emission and many-pulse sequences and demonstrate optimization strategies to mitigate this effect. Given the ubiquity of spontaneous emission in quantum systems, these results may be valuable for improving the performance of a diverse array of quantum sensors. We anticipate our findings will significantly benefit the performance of matter-wave interferometers for a variety of applications, including dark matter, dark energy, and gravitational wave detection. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_11246 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Robust Quantum Control via Multipath Interference for Thousandfold Phase Amplification in a Resonant Atom Interferometer Wang, Yiping Glick, Jonah Deshpande, Tejas DeRose, Kenneth Saraf, Sharika Sachdeva, Natasha Jiang, Kefeng Chen, Zilin Kovachy, Tim Quantum Physics Atomic Physics We introduce a novel technique for enhancing the robustness of light-pulse atom interferometers against the pulse infidelities that typically limit their sensitivities. The technique uses quantum optimal control to favorably harness the multipath interference of the stray trajectories produced by imperfect atom-optics operations. We apply this method to a resonant atom interferometer and achieve thousand-fold phase amplification, representing a fifty-fold improvement over the performance observed without optimized control. Moreover, we find that spurious interference can arise from the interplay of spontaneous emission and many-pulse sequences and demonstrate optimization strategies to mitigate this effect. Given the ubiquity of spontaneous emission in quantum systems, these results may be valuable for improving the performance of a diverse array of quantum sensors. We anticipate our findings will significantly benefit the performance of matter-wave interferometers for a variety of applications, including dark matter, dark energy, and gravitational wave detection. |
| title | Robust Quantum Control via Multipath Interference for Thousandfold Phase Amplification in a Resonant Atom Interferometer |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2407.11246 |