activity
20192021
most citedAccurate prediction of clock transitions in a highly charged ion with complex electronic structure

37 citations · 73 across the 5 of their papers we have counts for

collaborators

5 papers

physics.atom-ph2021★ 8 cited

Laser Spectroscopy of the yP states of Cr I

E. B. Norrgard, D. S. Barker, S. P. Eckel +5

Here we report measured and calculated values of decay rates of the 3d(D)4s4p(P)\ yP states of Cr I. The decay rates are measured usin…

physics.atom-ph2020★ 8 cited

Observation of an electric quadrupole transition in a negative ion: Experiment and Theory

C. W. Walter, S. E. Spielman, R. Ponce +4

The first direct experimental observation of an electric quadrupole (2) transition between bound states of an atomic negative ion has been made. The transition was obse…

physics.atom-ph2020★ 10 cited

Predicting quasibound states of negative ions

M. S. Safronova, C. Cheung, M. G. Kozlov +3

We demonstrated the accurate prediction of a quasibound spectrum of a negative ion using a novel high-precision theoretical approach. We used La as a test case due to a recent…

physics.atom-ph2020★ 10 cited

Detection of missing low-lying atomic states in actinium

Ke Zhang, Dominik Studer, Felix Weber +10

Two lowest-energy odd-parity atomic levels of actinium, 7s^27p 2P^o_1/2, 7s^27p 2P^o_3/2, were observed via two-step resonant laser-ionization spectroscopy and their respective ene…

physics.atom-ph2019★ 37 cited

Accurate prediction of clock transitions in a highly charged ion with complex electronic structure

C. Cheung, M. S. Safronova, S. G. Porsev +3

We have developed a broadly-applicable approach that drastically increases the ability to accurately predict properties of complex atoms. We applied it to the case of Ir, w…