Dipole-phonon quantum logic with alkaline-earth monoxide and monosulfide cations

Abstract

Dipole-phonon quantum logic (DPQL) leverages the interaction between polar molecular ions and the motional modes of a trapped-ion Coulomb crystal to provide a potentially scalable route to quantum information science. Here, we study a class of candidate molecular ions for DPQL, the cationic alkaline-earth monoxides and monosulfides, which possess suitable structure for DPQL and can be produced in existing atomic ion experiments with little additional complexity. We present calculations of DPQL operations for one of these molecules, CaO${}^{+}$, and discuss progress towards experimental realization. We also further develop the theory of DPQL to include state preparation and measurement and entanglement of multiple molecular ions.

arXiv comment10 pages, 6 figures

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Cited by in corpus (5)

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• Precisely Spun Super Rotors
• Adiabatically controlled motional states of a ground-state cooled CaO${}^{+}$ and Ca${}^{+}$ trapped ion chain
• Features of Molecular Structure Beneficial for Optical Pumping
• Photon spin molasses for laser cooling molecular rotation