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

Abstract

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${}^{17+}$, which is of particular interest for the development of novel atomic clocks with high sensitivity to the variation of the fine-structure constant and dark matter searches. The clock transitions are weak and very difficult to identity without accurate theoretical predictions. In the case of Ir${}^{17+}$, even stronger electric-dipole (E1) transitions eluded observation despite years of effort raising the possibility that theory predictions are grossly wrong. In this work, we provide accurate predictions of transition wavelengths and E1 transition rates in Ir${}^{17+}$. Our results explain the lack of observation of the E1 transitions and provide a pathway towards detection of clock transitions. Computational advances demonstrated in this work are widely applicable to most elements in the periodic table and will allow to solve numerous problems in atomic physics, astrophysics, and plasma physics.

arXiv comment6 pages, 3 figures

References in corpus (27)

• Search for New Physics with Atoms and Molecules
• The String Dilaton and a Least Coupling Principle
• CODATA Recommended Values of the Fundamental Physical Constants: 2014
• Varying constants, Gravitation and Cosmology
• Hunting for topological dark matter with atomic clocks
• Searching for dilaton dark matter with atomic clocks
• Highly charged ions: optical clocks and applications in fundamental physics
• Search for ultralight scalar dark matter with atomic spectroscopy
• Searching for dark matter and variation of fundamental constants with laser and maser interferometry
• Searching for an oscillating massive scalar field as a dark matter candidate using atomic hyperfine frequency comparisons
• Enhanced laboratory sensitivity to variation of the fine-structure constant using highly-charged ions
• Violation of the equivalence principle from light scalar dark matter
• Development of a configuration-interaction + all-order method for atomic calculations
• First observation with global network of optical atomic clocks aimed for a dark matter detection
• Coherent laser spectroscopy of highly charged ions using quantum logic
• Search for domain wall dark matter with atomic clocks on board global positioning system satellites
• Highly-charged ions as a basis of optical atomic clockwork of exceptional accuracy
• Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation
• Highly-charged ions for atomic clocks, quantum information, and search for $\alpha$-variation
• Two clock transitions in neutral Yb for the highest sensitivity to variations of the fine-structure constant
• Highly charged ions with E1, M1, and E2 transitions within laser range
• Additional clock transitions in neutral ytterbium bring new possibilities for testing physics beyond the Standard Model
• QED shifts in multivalent heavy ions
• Detection of the $5p-4f$ orbital crossing and its optical clock transition in Pr${}^{9+}$
• High-precision atomic clocks with highly charged ions: nuclear spin-zero $f^{12}$-shell ions
• Atomic calculations and search for variation of the fine structure constant in quasar absorption spectra
• Transitions between the $4f$-core-excited states in Ir${}^{16+}$, Ir${}^{17+}$, and Ir${}^{18+}$ ions for clock applications

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