Issue 43, 2020

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.

Graphical abstract: Dipole–phonon quantum logic with alkaline-earth monoxide and monosulfide cations

Supplementary files

Article information

Article type
Paper
Submitted
30 Mha 2020
Accepted
16 Nhl 2020
First published
16 Nhl 2020

Phys. Chem. Chem. Phys., 2020,22, 24964-24973

Author version available

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

M. Mills, H. Wu, E. C. Reed, L. Qi, K. R. Brown, C. Schneider, M. C. Heaven, W. C. Campbell and E. R. Hudson, Phys. Chem. Chem. Phys., 2020, 22, 24964 DOI: 10.1039/D0CP04574H

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