Optical clocks based on the SG Porsev, UI Safronova, MS Safronova, PO Schmidt, AI Bondarev, ...
Physical Review A 102 (1), 012802, 2020
50 2020 High resolution photoexcitation measurements exacerbate the long-standing Fe XVII oscillator strength problem S Kühn, C Shah, JRC López-Urrutia, K Fujii, R Steinbrügge, J Stierhof, ...
Physical review letters 124 (22), 225001, 2020
48 2020 Accurate prediction of clock transitions in a highly charged ion with complex electronic structure C Cheung, MS Safronova, SG Porsev, MG Kozlov, II Tupitsyn, ...
Physical Review Letters 124 (16), 163001, 2020
34 2020 New measurement resolves key astrophysical Fe XVII oscillator strength problem S Kühn, C Cheung, NS Oreshkina, R Steinbrügge, M Togawa, S Bernitt, ...
Physical review letters 129 (24), 245001, 2022
32 2022 Scalable codes for precision calculations of properties of complex atomic systems C Cheung, M Safronova, S Porsev
Symmetry 13 (4), 621, 2021
25 2021 Prospects of a thousand-ion Sn2+ Coulomb-crystal clock with sub-10−19 inaccuracy DR Leibrandt, SG Porsev, C Cheung, MS Safronova
Nature Communications 15 (1), 5663, 2024
21 2024 State-insensitive trapping of alkaline-earth atoms in a nanofiber-based optical dipole trap G Kestler, K Ton, D Filin, C Cheung, P Schneeweiss, T Hoinkes, J Volz, ...
PRX Quantum 4 (4), 040308, 2023
17 2023 Detection of the lowest-lying odd-parity atomic levels in actinium K Zhang, D Studer, F Weber, VM Gadelshin, N Kneip, S Raeder, D Budker, ...
Physical Review Letters 125 (7), 073001, 2020
15 2020 Predicting quasibound states of negative ions: MS Safronova, C Cheung, MG Kozlov, SE Spielman, ND Gibson, ...
Physical Review A 103 (2), 022819, 2021
11 2021 Optical telecommunications-band clock based on neutral titanium atoms S Eustice, D Filin, J Schrott, S Porsev, C Cheung, D Novoa, ...
Physical Review A 107 (5), L051102, 2023
10 2023 Observation of an electric quadrupole transition in a negative ion: Experiment and theory CW Walter, SE Spielman, R Ponce, ND Gibson, JN Yukich, C Cheung, ...
Physical Review Letters 126 (8), 083001, 2021
10 2021 High-precision transition energy measurements of neon-like Fe XVII ions C Shah, M Togawa, M Botz, J Danisch, JJ Goes, S Bernitt, M Maxton, ...
The Astrophysical Journal 969 (1), 52, 2024
8 2024 Laser spectroscopy of the i EB Norrgard, DS Barker, SP Eckel, SG Porsev, C Cheung, MG Kozlov, ...
Physical Review A 105 (3), 032812, 2022
7 * 2022 Oscillator-strength ratio of two Fe XVII soft X-ray transitions essential for plasma diagnostics finally agrees with theory S Kühn, C Cheung, NS Oreshkina, R Steinbrügge, M Togawa, C Shah, ...
arXiv preprint arXiv:2201.09070, 2022
7 2022 Natural-linewidth measurements of the xix C Shah, S Kühn, S Bernitt, R Steinbrügge, M Togawa, L Berger, J Buck, ...
Physical Review A 109 (6), 063108, 2024
6 2024 Low-lying energy levels of 229Th35+ and the electronic bridge process SG Porsev, C Cheung, MS Safronova
Quantum Science and Technology 6 (3), 034014, 2021
6 2021 pCI: A parallel configuration interaction software package for high-precision atomic structure calculations C Cheung, MG Kozlov, SG Porsev, MS Safronova, II Tupitsyn, ...
Computer Physics Communications 308, 109463, 2025
5 2025 Neural-network approach to running high-precision atomic computations P Bilous, C Cheung, M Safronova
Physical Review A 110 (4), 042818, 2024
5 2024 Calculations of multipole transitions in Sn II for kilonova analysis AI Bondarev, JH Gillanders, C Cheung, MS Safronova, S Fritzsche
The European Physical Journal D 77 (7), 126, 2023
5 2023 SG Porsev, C Cheung, MS Safronova, H Bekker, NH Rehbehn, ...
Physical Review A 110 (4), 042823, 2024
3 2024 