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Physics

A Mid-Infrared Platform Based on Strontium Tweezer Arrays

Aaron Holman, Ximo Sun, Bojeong Seo, Joshua Corn, Zezheng Zhu, Yuan Xu, Jiahao Wu, Nanfang Yu, Dmytro Filin, Marianna Safronova, Sebastian Will

Featured June 4, 2026

Original Paper

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Simply

Scientists built a special atomic trap using tiny laser beams and mid-infrared light to cool strontium atoms very precisely, helping them study how atoms work together in new ways.

In depth
The paper introduces a novel mid-infrared platform utilizing optical tweezer arrays of strontium atoms, specifically leveraging a 2,923 nm transition. This platform enables the creation of subwavelength atomic arrays and precise control over atomic motion, opening new avenues for studying collective quantum phenomena and advanced quantum computing applications.

Key Takeaways

  • 1
    The authors establish a mid-infrared optical platform using strontium atoms in tweezer arrays, leveraging a 2,923 nm transition.
  • 2
    They identify and utilize a magic trapping wavelength at 597.14 nm, crucial for coherent control by eliminating differential light shifts.
  • 3
    The platform enables resolved-sideband cooling of strontium atoms in the metastable state, bringing them close to their motional ground state.

Conceptual Flow

HIGH LEVEL
1
Methodology: How was it done?

They built a special trap for atoms using tiny laser beams and a specific color of light to make sure the atoms stayed still and could be cooled very precisely.

Strontium Atoms
Tiny Laser Beams
Create Special Trap
Precisely Held Atoms
2
Results: What did they find?

They successfully cooled the trapped atoms to near-absolute zero using mid-infrared light, opening doors for new quantum experiments.

Precisely Held Atoms
Mid-Infrared Light
Cool Atoms Down
Super Cold Atoms
New Quantum Studies