Progress towards tunable mixed-species laser-free interactions with parametric modulation
ORAL
Abstract
Co-trapping multiple ion species can offer many advantages for quantum information processing, combining the best qualities of each species. However, such mixed-species operation also poses challenges, and the choice of which species can be co-trapped is often limited by their charge-to-mass ratios. If the charge-to-mass ratios of the species are poorly matched, participation in shared motional modes—especially radial modes—can be highly unequal, which slows motionally-mediated multi-qubit interactions. Parametric modulation of the confining potential enables tunable coupling between motional modes [1], which can be used to assist interactions that are impeded by unequal mode participation. We propose using this technique to speed up mixed-species laser-free quantum logic operations by coupling different radial modes in mixed-species ion crystals.
[1] Gorman, D.J. et al., Phys. Rev. A 89, 062332 (2014).
[1] Gorman, D.J. et al., Phys. Rev. A 89, 062332 (2014).
*We would like to acknowledge support from the NIST Quantum Information Program.
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Publication: Work will likely be incorporated in at least one future paper.
Presenters
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Hannah M Knaack
- University of Colorado, Boulder
- National Institute of Standards and Technology, Boulder, CO 80305, USA and Department of Physics, University of Colorado, Boulder, CO 80309, USA