CODATA recommended values of the fundamental physical constants: 2010

PJ Mohr, BN Taylor, DB Newell - Journal of Physical and Chemical …, 2012 - pubs.aip.org
1.1. Background This article reports work carried out under the auspices of the Committee
on Data for Science and Technology (CODATA) Task Group on Fundamental Constants. 1 It …

The Rydberg constant and proton size from atomic hydrogen

A Beyer, L Maisenbacher, A Matveev, R Pohl… - Science, 2017 - science.org
At the core of the “proton radius puzzle” is a four–standard deviation discrepancy between
the proton root-mean-square charge radii (rp) determined from the regular hydrogen (H) and …

Improved Measurement of the Hydrogen Transition Frequency

CG Parthey, A Matveev, J Alnis, B Bernhardt, A Beyer… - Physical review …, 2011 - APS
We have measured the 1 S–2 S transition frequency in atomic hydrogen via two-photon
spectroscopy on a 5.8 K atomic beam. We obtain f 1 S–2 S= 2 466 061 413 187 035 (10) Hz …

Precision Measurement of the Hydrogen-Deuterium Isotope Shift

CG Parthey, A Matveev, J Alnis, R Pohl, T Udem… - Physical review …, 2010 - APS
Measuring the hydrogen-deuterium isotope shift via two-photon spectroscopy of the 1 S-2 S
transition, we obtain 670 994 334 606 (15) Hz. This is a 10-times improvement over the …

A critical compilation of experimental data on spectral lines and energy levels of hydrogen, deuterium, and tritium

AE Kramida - Atomic Data and Nuclear Data Tables, 2010 - Elsevier
For more than 50years, Charlotte Moore's compilation of atomic energy levels and its
subsequent revisions have been the standard source of reference data for the spectra of …

Ramsey Spectroscopy of the Hyperfine Interval in Atomic Hydrogen

RG Bullis, C Rasor, WL Tavis, SA Johnson… - Physical Review Letters, 2023 - APS
The 2 S 1/2 hyperfine interval in atomic hydrogen was measured using Ramsey
spectroscopy with a thermal beam cooled to cryogenic temperatures. The measured value is …

Tabulation of the bound-state energies of atomic hydrogen

M Horbatsch, EA Hessels - Physical Review A, 2016 - APS
We present tables for the bound-state energies for atomic hydrogen. The tabulated energies
include the hyperfine structure and thus this work extends the work of Mohr et al.[PJ Mohr …

Precision physics of simple atoms and constraints on a light boson with ultraweak coupling

SG Karshenboim - Physical review letters, 2010 - APS
Constraint on spin-dependent and spin-independent Yukawa potential at atomic scale is
developed. That covers constraints on a coupling constant of an additional photon γ* and a …

Hydrogen-deuterium isotope shift: From the -transition frequency to the proton-deuteron charge-radius difference

UD Jentschura, A Matveev, CG Parthey, J Alnis… - Physical Review A …, 2011 - APS
We analyze and review the theory of the hydrogen-deuterium isotope shift for the 1 S-2 S
transition, which is one of the most accurately measured isotope shifts in any atomic system …

Quantum metrology and many-body physics: pushing the frontier of the optical lattice clock

MJ Martin - 2013 - search.proquest.com
Neutral atom optical standards require the highest levels of laser precision to operate near
the limit set by quantum fluctuations. We develop state-of-the-art ultra-stable laser systems to …