A Robust Strontium Tweezer Apparatus for Quantum Computing
- URL: http://arxiv.org/abs/2601.16564v1
- Date: Fri, 23 Jan 2026 09:03:44 GMT
- Title: A Robust Strontium Tweezer Apparatus for Quantum Computing
- Authors: Marijn Venderbosch, Rik van Herk, Zhichao Guo, Jesús del Pozo Mellado, Max Festenstein, Deon Janse van Rensburg, Ivo Knottnerus, Yu Chih Tseng, Alexander Urech, Robert Spreeuw, Florian Schreck, Rianne Lous, Edgar Vredenbregt, Servaas Kokkelmans,
- Abstract summary: We demonstrate a versatile apparatus capable ofally loading a 5x5 array of optical tweezers with single $88$Sr atoms.<n>In the science chamber, featuring a vacuum pressure of $3 times 10-11$ mbar, the Sr is cooled using two laser cooling stages.<n> loaded atoms can be imaged with a fidelity of $sim 0.997$ and a survival probability of $0.99+0.01_0.02$.
- Score: 27.829988205900055
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: 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.
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