Suppression of differential light shifts in ground and metastable trapped-ion qubits
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914623717900288 |
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| author | Parks, Drew Dellaert, Thomas McMillin, Patrick Roman, Conrad Derevianko, Andrei Campbell, Wesley C. |
| author_facet | Parks, Drew Dellaert, Thomas McMillin, Patrick Roman, Conrad Derevianko, Andrei Campbell, Wesley C. |
| contents | In the presence of a magnetic field, hyperfine clock qubits can acquire a vector differential light shift that can be tuned via polarization to suppress the total differential light shift of high-power, off-resonant laser light. We experimentally measure this "magic" polarization condition, suppressing differential light shifts in both the ${}^2\mathrm{S}_{1/2}$ ground and ${}^2\mathrm{F}_{7/2}^o$ metastable clock qubits of $^{171}\mathrm{Yb}^+$. We present calculations of the minimum bias magnetic fields required to suppress differential light shifts in the ground state clock qubits of commonly trapped ion species, finding that they are below the strengths of fields already typically present in experiments. We further present methods for metastable clock-qubit control in $^{171}\mathrm{Yb}^+$, demonstrating a state preparation and measurement infidelity of $2.9^{+3.0}_{-1.5}\times10^{-4}$ ($-35 \pm 4 \, \mathrm{dB}$). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2606_02543 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Suppression of differential light shifts in ground and metastable trapped-ion qubits Parks, Drew Dellaert, Thomas McMillin, Patrick Roman, Conrad Derevianko, Andrei Campbell, Wesley C. Atomic Physics In the presence of a magnetic field, hyperfine clock qubits can acquire a vector differential light shift that can be tuned via polarization to suppress the total differential light shift of high-power, off-resonant laser light. We experimentally measure this "magic" polarization condition, suppressing differential light shifts in both the ${}^2\mathrm{S}_{1/2}$ ground and ${}^2\mathrm{F}_{7/2}^o$ metastable clock qubits of $^{171}\mathrm{Yb}^+$. We present calculations of the minimum bias magnetic fields required to suppress differential light shifts in the ground state clock qubits of commonly trapped ion species, finding that they are below the strengths of fields already typically present in experiments. We further present methods for metastable clock-qubit control in $^{171}\mathrm{Yb}^+$, demonstrating a state preparation and measurement infidelity of $2.9^{+3.0}_{-1.5}\times10^{-4}$ ($-35 \pm 4 \, \mathrm{dB}$). |
| title | Suppression of differential light shifts in ground and metastable trapped-ion qubits |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2606.02543 |