High sensitivity to mass-ratio variation in deep molecular potentials
Atomic Physics
2016-11-15 v1
Abstract
Molecular vibrational transitions are prime candidates for model-independent searches for variation of the proton-to-electron mass ratio. Searches for present-day variation achieve highest sensitivity with deep molecular potentials. We identify several high-sensitivity transitions in the deeply bound molecular ion. These transitions are electric-dipole forbidden and thus have narrow linewidths. The most sensitive transitions take advantage of an accidental degeneracy between vibrational states in different electronic potentials. We suggest experimentally feasible routes to a measurement with uncertainty exceeding current limits on present-day variation in .
Cite
@article{arxiv.1607.06825,
title = {High sensitivity to mass-ratio variation in deep molecular potentials},
author = {D. Hanneke and R. A. Carollo and D. A. Lane},
journal= {arXiv preprint arXiv:1607.06825},
year = {2016}
}