Bulletin of the American Physical Society
54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 68, Number 7
Monday–Friday, June 5–9, 2023; Spokane, Washington
Session F01: Poster Session I (4:00pm-6:00pm PT)
4:00 PM,
Tuesday, June 6, 2023
Room: Exhibit Hall C
Abstract: F01.00118 : Two Photon Direct Frequency Comb Spectroscopy of the 1S-3S Transition in Hydrogen
Presenter:
Derya O Taray
(Max Planck Institute of Quantum Optics)
Authors:
Derya O Taray
(Max Planck Institute of Quantum Optics)
Alexey Grinin
(Max-Planck Institute of Quantum Optics)
Vitaly Wirthl
(Max Planck Institute of Quantum Optics)
Omer Amit
(Max Planck Institure of Quantum Optics)
Dylan C Yost
(Colorado State University)
Randolf Pohl
(Institute of Physics, QUANTUM and Cluster of Excellence PRISMA+, Johannes Gutenberg University, 55128 Mainz, Germany)
Thomas Udem
(Max Planck Institute of Quantum Optics)
Theodor Hansch
(Max Planck Institute of Quantum Optics)
Here we present the latest measurement of the 1S-3S transition in hydrogen, using two photon direct frequency comb spectroscopy. This is the first time this spectroscopy technique is applied in hydrogen. The obtained result ( f1S-3S = 2,922,743,278,665.79(72) kHz) supports the value of the proton charge radius obtained from muoic Hydrogen.
We also give an outlook on the next anticipated measurements, current problems and recent improvements of the experiment.
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