NIST - National Institute of Standards and Technology
NIST - National Institute of Standards and Technology
23/08/2024 | Press release | Archived content
Electromagnetically Induced Transparency Cooling with a Tripod Structure in a Hyperfine Trapped Ion with Mixed Species Crystals
Published
August 23, 2024
Author(s)
Jenny Wu, Pan-Yu Hou, Stephen Erickson, Adam Brandt, Yong Wan, Giorgio Zarantonello, Daniel Cole, Andrew C. Wilson, Daniel Slichter, Dietrich Leibfried
Abstract
Cooling of atomic motion is a crucial tool for many branches of atomic physics, ranging from fundamental physics explorations to quantum information and sensing. For trapped ions, electromagnetically-induced-transparency (EIT) cooling has received attention for the relative speed, low laser power requirements, and broad cooling bandwidth of the technique. However, in applications where the ion used for cooling has hyperfine structure to allow long coherence times, it is difficult to find a closed three-level system in which to perform standard EIT cooling. Here, we demonstrate successful EIT cooling on ^25} Mg^+ by the addition of an extra laser frequency; this method can be applied to any ion with non-zero nuclear spin. Furthermore, we demonstrate simultaneous cooling of all axial modes in mixed-species crystals ^9} Be^+ - ^25} Mg^+ and ^9} Be^+ - ^25} Mg^+ - ^9} Be^+ through the ^25} Mg^+ ion.
Citation
Physical Review A
Pub Type
Journals
Keywords
trapped ions, atomic physics, coherent population trapping, laser cooling
Citation
Wu, J. , Hou, P. , Erickson, S. , Brandt, A. , Wan, Y. , Zarantonello, G. , Cole, D. , Wilson, A. , Slichter, D. and Leibfried, D. (2024), Electromagnetically-Induced-Transparency Cooling with a Tripod Structure in a Hyperfine Trapped Ion with Mixed-Species Crystals, Physical Review A (Accessed August 28, 2024)
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