Hyperfine structure of 2Sigma molecules containing alkaline-earth atoms

Abstract

Ultracold molecules with both electron spin and an electric dipole moment offer new possibilities in quantum science. We use density-functional theory to calculate hyperfine coupling constants for a selection of molecules important in this area, including RbSr, LiYb, RbYb, CaF and SrF. We find substantial hyperfine coupling constants for the fermionic isotopes of the alkaline-earth and Yb atoms. We discuss the hyperfine level patterns and Zeeman splittings expected for these molecules. The results will be important both to experiments aimed at forming ultracold open-shell molecules and to their applications.

Version updated due to modifications performed to comply with the referee's comments and suggestions

References in corpus (11)

• A High Phase-Space-Density Gas of Polar Molecules
• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Ultracold Dipolar Gas of Fermionic ${}^{23}$Na${}^{40}$K Molecules in their Absolute Ground State
• Magneto-optical trapping of a diatomic molecule
• Creation of ultracold ${}^{87}$RbCs molecules in the rovibrational ground state
• Molecules cooled below the Doppler limit
• Creation of an ultracold gas of ground-state ${}^{23}{\mathrm{Na}}^{87}\mathrm{Rb}$ molecules
• The hyperfine energy levels of alkali metal dimers: ground-state polar molecules in electric and magnetic fields
• Feshbach resonances, weakly bound molecular states and coupled-channel potentials for cesium at high magnetic fields
• Hyperfine structure of alkali-metal diatomic molecules
• AC Stark Effect in Ultracold Polar RbCs Molecules

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• Long rotational coherence times of molecules in a magnetic trap
• Magnetic Feshbach resonances in ultracold collisions between Cs and Yb atoms
• Shielding collisions of ultracold CaF molecules with static electric fields
• Quantum simulation of the central spin model with a Rydberg atom and polar molecules in optical tweezers
• Observation of Microwave Shielding of Ultracold Molecules
• High-resolution laser-induced fluorescence spectroscopy of ${}^{28}$Si${}^{16}$O${}^{+}$ and ${}^{29}$Si${}^{16}$O${}^{+}$ in a cryogenic buffer-gas cell
• Scalable platform for qudit-based quantum computing using polar molecules