Extended Rydberg Lifetimes in a Cryogenic Atom Array
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866912881867489280 |
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| author | Jin, Junlan Shi, Yue Alaoui, Youssef Aziz Deng, Jingxin Lu, Yukai Thompson, Jeff D. Bakr, Waseem S. |
| author_facet | Jin, Junlan Shi, Yue Alaoui, Youssef Aziz Deng, Jingxin Lu, Yukai Thompson, Jeff D. Bakr, Waseem S. |
| contents | We report on the realization of a $^{133}$Cs optical tweezer array in a cryogenic blackbody radiation (BBR) environment. By enclosing the array within a 4K radiation shield, we measure long Rydberg lifetimes, up to $406 (36)\,μ$s for the $55 P_{3/2}$ Rydberg state, a factor of 3.3(3) longer than the room-temperature value. We employ single-photon coupling for coherent manipulation of the ground-Rydberg qubit. We measure a small differential dynamic polarizability of the transition, beneficial for reducing dephasing due to light intensity fluctuations. Our results pave the path for advancing neutral-atom two-qubit gate fidelities as their error budgets become increasingly dominated by $T_1$ relaxation of the ground-Rydberg qubit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_05959 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Extended Rydberg Lifetimes in a Cryogenic Atom Array Jin, Junlan Shi, Yue Alaoui, Youssef Aziz Deng, Jingxin Lu, Yukai Thompson, Jeff D. Bakr, Waseem S. Atomic Physics Quantum Gases Quantum Physics We report on the realization of a $^{133}$Cs optical tweezer array in a cryogenic blackbody radiation (BBR) environment. By enclosing the array within a 4K radiation shield, we measure long Rydberg lifetimes, up to $406 (36)\,μ$s for the $55 P_{3/2}$ Rydberg state, a factor of 3.3(3) longer than the room-temperature value. We employ single-photon coupling for coherent manipulation of the ground-Rydberg qubit. We measure a small differential dynamic polarizability of the transition, beneficial for reducing dephasing due to light intensity fluctuations. Our results pave the path for advancing neutral-atom two-qubit gate fidelities as their error budgets become increasingly dominated by $T_1$ relaxation of the ground-Rydberg qubit. |
| title | Extended Rydberg Lifetimes in a Cryogenic Atom Array |
| topic | Atomic Physics Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2602.05959 |