J. Karr

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physics.atom-ph2026

Spectroscopy of the Hyperfine Structure of HD $^{+}$ in Rotationally Excited States with 10-ppb Uncertainty

D. Kliukin, V. BarbÃ©, T. Klijn Velderman +5

We report the first measurement of the total hyperfine interval in the manifold of the ( $v = 0, L = 3$ ) rovibrational state of HD $^{+}$ using microwave spectroscopy of HD $^{+}$ ions in a li…

physics.atom-ph2025

Determination of a set of fundamental constants from molecular hydrogen ion spectroscopy: a modeling study

J. -Ph Karr, S. Schiller, V. I. Korobov +1

The rovibrational transition frequencies of molecular hydrogen ions (MHI) can be accurately computed using ab initio nonrelativistic quantum electrodynamics. A subset of the fundam…

Spectroscopy of the Hyperfine Structure of HD+ in Rotationally Excited States with 10-ppb Uncertainty

Determination of a set of fundamental constants from molecular hydrogen ion spectroscopy: a modeling study

Spectroscopy of the Hyperfine Structure of HD $^{+}$ in Rotationally Excited States with 10-ppb Uncertainty