P Indelicato - Journal of Physics B: Atomic, Molecular and Optical …, 2019 - iopscience.iop.org
The current status of bound state quantum electrodynamics calculations of transition energies for few-electron ions is reviewed. Evaluation of one and two body QED correction …
Highly accurate results from frequency measurements on neutral hydrogen molecules H 2, HD, and D 2 as well as the HD+ ion can be interpreted in terms of constraints on possible …
JJ Krauth, K Schuhmann, MA Ahmed, FD Amaro… - Nature, 2021 - nature.com
The energy levels of hydrogen-like atomic systems can be calculated with great precision. Starting from their quantum mechanical solution, they have been refined over the years to …
We critically examine the current status of theoretical calculations of the energies, the fine structure, and the isotope shift of the lowest-lying states of helium, searching for unresolved …
Á Nonn, Á Margócsy, E Mátyus - Journal of Chemical Theory and …, 2024 - ACS Publications
Precision physics aims to use atoms and molecules to test and develop the fundamental theory of matter, possibly beyond the Standard Model. Most of the atomic and molecular …
G Clausen, P Jansen, S Scheidegger, JA Agner… - Physical Review Letters, 2021 - APS
In a recent breakthrough in first-principles calculations of two-electron systems, Patkóś, Yerokhin, and Pachucki [Phys. Rev. A 103, 042809 (2021) PLRAAN 2469-9926 …
ZT Lu, P Mueller, GWF Drake, W Nörtershäuser… - Reviews of Modern …, 2013 - APS
The neutron-rich He 6 and He 8 isotopes exhibit an exotic nuclear structure that consists of a tightly bound He 4-like core with additional neutrons orbiting at a relatively large distance …
X Zheng, YR Sun, JJ Chen, W Jiang, K Pachucki… - Physical review …, 2017 - APS
The 2 S 3–2 P 3 transition of He 4 was measured by comb-linked laser spectroscopy using a transverse-cooled atomic beam. The centroid frequency was determined to be 276 736 495 …
C Delaunay, C Frugiuele, E Fuchs, Y Soreq - Physical Review D, 2017 - APS
The very high precision of current measurements and theory predictions of spectral lines in few-electron atoms allows us to efficiently probe the existence of exotic forces between …