The Fundamental Vibration of Molecular Hydrogen
Atomic Physics
2015-06-15 v1
Abstract
The fundamental ground tone vibration of H2, HD, and D2 is determined to an accuracy of 2 x 10^-4 cm^-1 from Doppler-free laser spectroscopy in the collisionless environment of a molecular beam. This rotationless vibrational splitting is derived from the combination difference between electronic excitation from the X^1Sg+, v=0 and v=1 levels to a common EF^1g+, v=0 level. Agreement within between the experimental result and a full ab initio calculation provides a stringent test of quantum electrodynamics in a chemically-bound system.
Keywords
Cite
@article{arxiv.1304.6390,
title = {The Fundamental Vibration of Molecular Hydrogen},
author = {Gareth. D. Dickenson and Ming Li Niu and Edcel J. Salumbides and Jacek Komasa and Kjeld S. E. Eikema and Krzysztof Pachucki and Wim Ubachs},
journal= {arXiv preprint arXiv:1304.6390},
year = {2015}
}
Comments
5 pages, 3 figures, Phys. Rev. Lett. (2013) accepted