Scalable loading of a two-dimensional trapped-ion array

Colin D. Bruzewicz (), Robert McConnell, John Chiaverini and Jeremy M. Sage
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Colin D. Bruzewicz: Lincoln Laboratory, Massachusetts Institute of Technology
Robert McConnell: Lincoln Laboratory, Massachusetts Institute of Technology
John Chiaverini: Lincoln Laboratory, Massachusetts Institute of Technology
Jeremy M. Sage: Lincoln Laboratory, Massachusetts Institute of Technology

Nature Communications, 2016, vol. 7, issue 1, 1-6

Abstract: Abstract Two-dimensional arrays of trapped-ion qubits are attractive platforms for scalable quantum information processing. Sufficiently rapid reloading capable of sustaining a large array, however, remains a significant challenge. Here with the use of a continuous flux of pre-cooled neutral atoms from a remotely located source, we achieve fast loading of a single ion per site while maintaining long trap lifetimes and without disturbing the coherence of an ion quantum bit in an adjacent site. This demonstration satisfies all major criteria necessary for loading and reloading extensive two-dimensional arrays, as will be required for large-scale quantum information processing. Moreover, the already high loading rate can be increased by loading ions in parallel with only a concomitant increase in photo-ionization laser power and no need for additional atomic flux.

Date: 2016
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DOI: 10.1038/ncomms13005

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