Experimental determination of the nuclear magnetic octupole moment of ${}^{137}$Ba${}^{+}$ ion

Abstract

We perform precision measurements on the 5D${}_{5/2}$ manifold hyperfine intervals of a single trapped ion, ${}^{137}$Ba${}^{+}$. RF spectroscopy is used to measure the hyperfine intervals to an accuracy of a few Hz. Our results provide a three orders of magnitude improvement in accuracy over previous work and also provide a 10-fold improvement in the value of $g_J$ for this level. These results complement our previous work on the 5D${}_{3/2}$ manifold of ${}^{137}$Ba${}^{+}$, providing an independent measurement of the nuclear octupole, and a consistency check on atomic structure calculations.

References in corpus (5)

• Hyperfine structure of the metastable 3P2 state of alkaline earth atoms as an accurate probe of nuclear magnetic octupole moments
• Precision measurement of light shifts at two off-resonant wavelengths in a single trapped Ba+ ion and determination of atomic dipole matrix elements
• Spectroscopy on a single trapped 137Ba+ ion for nuclear magnetic octupole moment determination
• Nuclear magnetic octupole moment and the hyperfine structure of the $5D_{3/2,5/2}$ states of the Ba${}^{+}$ ion
• Reliability test for the experimental results of electric quadrupole hyperfine structure constants and new assessment of nuclear quadrupole moments in ${}^{135,137}$Ba

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• Radio frequency spectroscopy measurement of the Landé g factor of the 5D5/2 state of Ba+ with a single trapped ion
• Relativistic coupled-cluster calculation of hyperfine-structure constants of ${}^{229}$Th${}^{3+}$ and evaluation of the electromagnetic nuclear moments of ${}^{229}$Th
• Raman sideband cooling of a 138Ba+ ion using a Zeeman interval
• Role of triple excitations in calculating different properties of Ba+
• Non-invasive mid-circuit measurement and reset on atomic qubits