fundamental constant tests 1methanol spectroscopy 1optical frequency comb 1precision frequency measurement 1radio-astronomy 1
From the 1 of 2 linked papers with an AI index.
2 papers
physics.atom-ph2026
Optically Derived Radio-Frequency Benchmark in Methanol: A Sub-kHz Reference for Astrophysical Tests of Fundamental Physics
Frank M. J. Cozijn, Arthémise Altman, Alexandr S. Bogomolov +8
The authors determine the absolute frequency of a key 12.2 GHz methanol transition by measuring related near‑infrared rovibrational lines with an optical frequency comb, achieving…
physics.atom-ph2026
Quasi-continuous sub-K strontium source without a high-finesse cavity stabilized laser
Sana Boughdachi, Benedikt Heizenreder, Ananya Sitaram +8
We demonstrate a quasi-continuous sub-K strontium source achieved without the use of a high-finesse cavity-locked laser. Our frequency reference is based on a dispersion-optimi…