A Robust Strontium Tweezer Apparatus for Quantum Computing
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arXiv
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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866914275379904512 |
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| author | Venderbosch, Marijn van Herk, Rik Guo, Zhichao Mellado, Jesús del Pozo Festenstein, Max van Rensburg, Deon Janse Knottnerus, Ivo Tseng, Yu Chih Urech, Alexander Spreeuw, Robert Schreck, Florian Lous, Rianne Vredenbregt, Edgar Kokkelmans, Servaas |
| author_facet | Venderbosch, Marijn van Herk, Rik Guo, Zhichao Mellado, Jesús del Pozo Festenstein, Max van Rensburg, Deon Janse Knottnerus, Ivo Tseng, Yu Chih Urech, Alexander Spreeuw, Robert Schreck, Florian Lous, Rianne Vredenbregt, Edgar Kokkelmans, Servaas |
| contents | Neutral atoms for quantum computing applications show promise in terms of scalability and connectivity. We demonstrate the realization of a versatile apparatus capable of stochastically loading a 5x5 array of optical tweezers with single $^{88}$Sr atoms featuring flexible magnetic field control and excellent optical access. A custom-designed oven, spin-flip Zeeman slower, and deflection stage produce a controlled flux of Sr directed to the science chamber. In the science chamber, featuring a vacuum pressure of $3 \times 10^{-11}$ mbar, the Sr is cooled using two laser cooling stages, resulting in $\sim 3 \times 10^5$ atoms at a temperature of 5(1) $μ$K. The optical tweezers feature a $1/e^2$ waist of 0.81(2) $μ$m, and loaded atoms can be imaged with a fidelity of $\sim 0.997$ and a survival probability of $0.99^{+0.01}_{-0.02}$. The atomic array presented here forms the core of a full-stack quantum computing processor targeted for quantum chemistry computational problems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_16564 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A Robust Strontium Tweezer Apparatus for Quantum Computing Venderbosch, Marijn van Herk, Rik Guo, Zhichao Mellado, Jesús del Pozo Festenstein, Max van Rensburg, Deon Janse Knottnerus, Ivo Tseng, Yu Chih Urech, Alexander Spreeuw, Robert Schreck, Florian Lous, Rianne Vredenbregt, Edgar Kokkelmans, Servaas Atomic Physics Quantum Physics Neutral atoms for quantum computing applications show promise in terms of scalability and connectivity. We demonstrate the realization of a versatile apparatus capable of stochastically loading a 5x5 array of optical tweezers with single $^{88}$Sr atoms featuring flexible magnetic field control and excellent optical access. A custom-designed oven, spin-flip Zeeman slower, and deflection stage produce a controlled flux of Sr directed to the science chamber. In the science chamber, featuring a vacuum pressure of $3 \times 10^{-11}$ mbar, the Sr is cooled using two laser cooling stages, resulting in $\sim 3 \times 10^5$ atoms at a temperature of 5(1) $μ$K. The optical tweezers feature a $1/e^2$ waist of 0.81(2) $μ$m, and loaded atoms can be imaged with a fidelity of $\sim 0.997$ and a survival probability of $0.99^{+0.01}_{-0.02}$. The atomic array presented here forms the core of a full-stack quantum computing processor targeted for quantum chemistry computational problems. |
| title | A Robust Strontium Tweezer Apparatus for Quantum Computing |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2601.16564 |