Long-lived collective Rydberg excitations in atomic gas achieved via ac-Stark lattice modulation
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909280257441792 |
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| author | Kurzyna, Stanisław Niewelt, Bartosz Mazelanik, Mateusz Wasilewski, Wojciech Parniak, Michał |
| author_facet | Kurzyna, Stanisław Niewelt, Bartosz Mazelanik, Mateusz Wasilewski, Wojciech Parniak, Michał |
| contents | Collective Rydberg excitations provide promising applications ranging from quantum information processing, and quantum computing to ultra-sensitive electrometry. However, their short lifetime is an immense obstacle in real-life scenarios. The state-of-the-art methods of prolonging the lifetime were mainly implemented for ground-state quantum memories and would require a redesign to effectively work on different atomic transitions. We propose a protocol for extending the Rydberg excitation lifetime, which in principle can freeze the spin-wave and completely cancel the effects of thermal dephasing. The protocol employs off-resonant ac-Stark lattice modulation of spin waves by interfering two laser beams on the atomic medium. Our implementation showed that the excitation lifetime can be extended by an order of magnitude, paving the way towards more complex protocols for collective Rydberg excitations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_06513 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Long-lived collective Rydberg excitations in atomic gas achieved via ac-Stark lattice modulation Kurzyna, Stanisław Niewelt, Bartosz Mazelanik, Mateusz Wasilewski, Wojciech Parniak, Michał Quantum Physics Atomic Physics Optics Collective Rydberg excitations provide promising applications ranging from quantum information processing, and quantum computing to ultra-sensitive electrometry. However, their short lifetime is an immense obstacle in real-life scenarios. The state-of-the-art methods of prolonging the lifetime were mainly implemented for ground-state quantum memories and would require a redesign to effectively work on different atomic transitions. We propose a protocol for extending the Rydberg excitation lifetime, which in principle can freeze the spin-wave and completely cancel the effects of thermal dephasing. The protocol employs off-resonant ac-Stark lattice modulation of spin waves by interfering two laser beams on the atomic medium. Our implementation showed that the excitation lifetime can be extended by an order of magnitude, paving the way towards more complex protocols for collective Rydberg excitations. |
| title | Long-lived collective Rydberg excitations in atomic gas achieved via ac-Stark lattice modulation |
| topic | Quantum Physics Atomic Physics Optics |
| url | https://arxiv.org/abs/2402.06513 |