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Dipole-Phonon Quantum Logic with Trapped Polar Molecular Ions.

  • Author(s): Campbell, Wesley C;
  • Hudson, Eric R
  • et al.

Published Web Location

https://arxiv.org/abs/1909.02668
No data is associated with this publication.
Abstract

The interaction between the electric dipole moment of a trapped molecular ion and the phonon modes of the confined Coulomb crystal couples the orientation of the molecule to its motion. We consider the practical feasibility of harnessing this interaction to initialize, process, and read out quantum information encoded in molecular ion qubits without ever optically illuminating the molecules. We present two schemes wherein a molecular ion can be entangled with a cotrapped atomic ion qubit, providing, among other things, a means for molecular state preparation and measurement. We also show that virtual phonon exchange can significantly boost the range of the intermolecular dipole-dipole interaction, allowing strong coupling between widely separated molecular ion qubits.

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