K. R. Brown

activity

20242026

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physics.atom-ph2026

Dual-Platform Precision Measurement of the $3^{2} D_{5/2}$ to $4^{2} S_{1/2}$ $g$ -Factor Ratio in $^{40} Ca^{+}$

Brian J. McMahon, Vikram S. Sandhu, John M. Gray +3

We report precision measurements of the ratio of Landé $g$ factors between the $3^{2} D_{5/2}$ and $4^{2} S_{1/2}$ states of a single trapped $^{40} Ca^{+}$ ion. The measurements are…

physics.atom-ph2024

Individual-Ion Addressing and Readout in a Penning Trap

Brian J. McMahon, Kenton R. Brown, Creston D. Herold +1

We implement individual addressing and readout of ions in a rigidly rotating planar crystal in a compact, permanent magnet Penning trap. The crystal of $^{40}$ Ca $^{+}$ is trapped and…

Dual-Platform Precision Measurement of the 32D5/2​ to 42S1/2​ g-Factor Ratio in 40Ca+

Individual-Ion Addressing and Readout in a Penning Trap

Dual-Platform Precision Measurement of the $3^{2} D_{5/2}$ to $4^{2} S_{1/2}$ $g$ -Factor Ratio in $^{40} Ca^{+}$