Precision Measurement of Lifetime and Branching Ratios of the $4f^{13}5d6s\,^1[5/2]_{5/2}$ state in Yb$^+$ ions
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
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2025
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| _version_ | 1866916780374491136 |
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| author | Suganthi, Midhuna Duraisamy So, Visal Menon, Abhishek Tomaras, George Zhuravel, Roman Pagano, Guido |
| author_facet | Suganthi, Midhuna Duraisamy So, Visal Menon, Abhishek Tomaras, George Zhuravel, Roman Pagano, Guido |
| contents | We report spectroscopic and time-resolved experimental observations to characterize the $[{\rm Xe}]4f^{13}(^2F^{o}_{5/2}){5d6s(}{^1\!D}){^{1}[5/2]^{o}_{5/2}}$ state in $^{172}$Yb$^+$ ions. We access this state from the metastable $4f^{14}5d (^2D_{3/2,5/2})$ manifold and observe an unexpectedly long lifetime of $τ=37.9(9) \,μ$s that allows visible Rabi oscillations and resolved-sideband spectroscopy. Using a combination of coherent population dynamics, high-fidelity detection and heralded state preparation, and optical pumping methods, we measure the branching ratios to the $^{2}D_{3/2}$, $^2D_{5/2}$, $^2S_{1/2}$ states to be 0.359(2), 0.639(2), 0.0023(16), respectively. The branching ratio to the $4f^{13}6s^{2}({^2F}_{7/2})$ is compatible with zero within our experimental resolution. We also report measurements of its Landé g-factor and the branching ratio of the ${^{2}{D}_{5/2}}$ to ${^{2}{S}_{1/2}}$ decay in $^{172}$Yb$^+$ to be 0.188(3), improving its relative uncertainty by an order of magnitude. Our measurements pave the way to a better understanding of the atomic structure of Yb$^+$ ions, which still lacks accurate numerical descriptions, and the use of high-lying excited states for partial detection and qubit manipulation in the omg architecture. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_04320 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Precision Measurement of Lifetime and Branching Ratios of the $4f^{13}5d6s\,^1[5/2]_{5/2}$ state in Yb$^+$ ions Suganthi, Midhuna Duraisamy So, Visal Menon, Abhishek Tomaras, George Zhuravel, Roman Pagano, Guido Atomic Physics Quantum Gases Quantum Physics We report spectroscopic and time-resolved experimental observations to characterize the $[{\rm Xe}]4f^{13}(^2F^{o}_{5/2}){5d6s(}{^1\!D}){^{1}[5/2]^{o}_{5/2}}$ state in $^{172}$Yb$^+$ ions. We access this state from the metastable $4f^{14}5d (^2D_{3/2,5/2})$ manifold and observe an unexpectedly long lifetime of $τ=37.9(9) \,μ$s that allows visible Rabi oscillations and resolved-sideband spectroscopy. Using a combination of coherent population dynamics, high-fidelity detection and heralded state preparation, and optical pumping methods, we measure the branching ratios to the $^{2}D_{3/2}$, $^2D_{5/2}$, $^2S_{1/2}$ states to be 0.359(2), 0.639(2), 0.0023(16), respectively. The branching ratio to the $4f^{13}6s^{2}({^2F}_{7/2})$ is compatible with zero within our experimental resolution. We also report measurements of its Landé g-factor and the branching ratio of the ${^{2}{D}_{5/2}}$ to ${^{2}{S}_{1/2}}$ decay in $^{172}$Yb$^+$ to be 0.188(3), improving its relative uncertainty by an order of magnitude. Our measurements pave the way to a better understanding of the atomic structure of Yb$^+$ ions, which still lacks accurate numerical descriptions, and the use of high-lying excited states for partial detection and qubit manipulation in the omg architecture. |
| title | Precision Measurement of Lifetime and Branching Ratios of the $4f^{13}5d6s\,^1[5/2]_{5/2}$ state in Yb$^+$ ions |
| topic | Atomic Physics Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2506.04320 |