Two-Photon Optical Ramsey-Doppler Spectroscopy of Positronium and Muonium
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909428078346240 |
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| author | Javary, Evans Thorpe-Woods, Edward Cortinovis, Irene Mähring, Marcus Borges, Lucas de Sousa Crivelli, Paolo |
| author_facet | Javary, Evans Thorpe-Woods, Edward Cortinovis, Irene Mähring, Marcus Borges, Lucas de Sousa Crivelli, Paolo |
| contents | Positronium and muonium, as purely leptonic atoms without internal structure, provide ideal systems for high-precision tests of quantum electrodynamics (QED) and measurements of fundamental constants. However, the high velocities of these lightweight atoms complicate precision spectroscopy, particularly in the 1S-2S transition, due to transit time broadening and second-order Doppler shifts. To overcome these challenges, we propose a novel method combining two-photon Ramsey spectroscopy with a technique to correct the second-order Doppler shifts on an atom-by-atom basis. Additionally, this approach suppresses systematic effects of the AC Stark shift to a negligible level compared to the target precision. Simulations predict that for both positronium and muonium, this method could improve the measurement precision of the 1S-2S transition by more than two orders of magnitude compared to the current state of the art. This approach opens up new avenues for rigorous bound-state QED tests and searches for physics beyond the Standard Model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_19872 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Two-Photon Optical Ramsey-Doppler Spectroscopy of Positronium and Muonium Javary, Evans Thorpe-Woods, Edward Cortinovis, Irene Mähring, Marcus Borges, Lucas de Sousa Crivelli, Paolo Atomic Physics High Energy Physics - Experiment Positronium and muonium, as purely leptonic atoms without internal structure, provide ideal systems for high-precision tests of quantum electrodynamics (QED) and measurements of fundamental constants. However, the high velocities of these lightweight atoms complicate precision spectroscopy, particularly in the 1S-2S transition, due to transit time broadening and second-order Doppler shifts. To overcome these challenges, we propose a novel method combining two-photon Ramsey spectroscopy with a technique to correct the second-order Doppler shifts on an atom-by-atom basis. Additionally, this approach suppresses systematic effects of the AC Stark shift to a negligible level compared to the target precision. Simulations predict that for both positronium and muonium, this method could improve the measurement precision of the 1S-2S transition by more than two orders of magnitude compared to the current state of the art. This approach opens up new avenues for rigorous bound-state QED tests and searches for physics beyond the Standard Model. |
| title | Two-Photon Optical Ramsey-Doppler Spectroscopy of Positronium and Muonium |
| topic | Atomic Physics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2411.19872 |