Highly charged ion (HCI) clocks: Frontier candidates for testing variation of fine-structure constant
Attempts are made to unify gravity with the other three fundamental forces of nature. As
suggested by higher dimensional models, this unification may require space and time …
suggested by higher dimensional models, this unification may require space and time …
Detection of the 5p – 4f orbital crossing and its optical clock transition in Pr9+
Recent theoretical works have proposed atomic clocks based on narrow optical transitions
in highly charged ions. The most interesting candidates for searches of physics beyond the …
in highly charged ions. The most interesting candidates for searches of physics beyond the …
and ion clocks with enhanced sensitivity to new physics
VA Dzuba, VV Flambaum - Physical Review A, 2024 - APS
We perform calculations of the electronic structure of Cm 15+ and Bk 16+ ions and
demonstrate that they have transitions which combine the features of atomic optical clocks …
demonstrate that they have transitions which combine the features of atomic optical clocks …
and ions as candidates for accurate optical clocks sensitive to physics beyond the standard model
VA Dzuba, VV Flambaum - Physical Review A, 2023 - APS
We perform detailed calculations of the electronic structure of the Os 16+ ion and
demonstrate that it has several metastable states which can be used for very accurate …
demonstrate that it has several metastable states which can be used for very accurate …
pCI: A parallel configuration interaction software package for high-precision atomic structure calculations
We introduce the pCI software package for high-precision atomic structure calculations. The
standard method of calculation is based on the configuration interaction (CI) method to …
standard method of calculation is based on the configuration interaction (CI) method to …
Investigating ground-state fine-structure properties to explore suitability of boronlike and galliumlike ions as possible atomic clocks
Y Yu, BK Sahoo - Physical Review A, 2019 - APS
We study various properties of the 2 p P 1/2 2− 2 p P 3/2 2 fine-structure splittings in the
boronlike S 11+, Cl 12+, Ar 13+, and K 14+ ions and the 4 p P 1/2 2− 4 p P 3/2 2 fine …
boronlike S 11+, Cl 12+, Ar 13+, and K 14+ ions and the 4 p P 1/2 2− 4 p P 3/2 2 fine …
level crossing in palladium-like ions and its effect on metastable states
We study the level structures of palladium-like I 7+(Z= 53) and Ba 10+(Z= 56) and the
behavior of their metastable states with an electron beam ion trap. The difference in the level …
behavior of their metastable states with an electron beam ion trap. The difference in the level …
Direct determination of the energy of the first excited fine-structure level in
N Kimura, R Kodama, K Suzuki, S Oishi, M Wada… - Physical Review A, 2019 - APS
We present an experimental observation of the visible magnetic dipole transition between
the fine structure levels in the ground term of Ba 6+(5 s 2 5 p 2: P 0 3− P 1 3) with a compact …
the fine structure levels in the ground term of Ba 6+(5 s 2 5 p 2: P 0 3− P 1 3) with a compact …
Atomic Structure of Nd9+ for Highly Charged Ion Clocks
Y Yu, D Pan, S Chen, B Arora, H Guan, K Gao, J Chen - Atoms, 2022 - mdpi.com
The energy levels arising from the electronic orbital 5 p− 4 f crossing between the ground 5
p 2 4 f and excited 5 p 4 f 2 configurations in the Nd 9+ ion are investigated by using high …
p 2 4 f and excited 5 p 4 f 2 configurations in the Nd 9+ ion are investigated by using high …
Energy-level-crossing study of forbidden transitions in highly charged ions with and configurations for making optical clocks
Y Yu, BK Sahoo - Physical Review A, 2024 - APS
Through the examination of energy level crossings among the fine-structure manifolds of the
(n= 4− 5) d 6 and (n= 4− 5) d 8 configurations in a number of highly charged ions (HCIs), we …
(n= 4− 5) d 6 and (n= 4− 5) d 8 configurations in a number of highly charged ions (HCIs), we …