Scalable loading of a two-dimensional trapped-ion array

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 rem...

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Published inNature communications Vol. 7; no. 1; pp. 13005 - 6
Main Authors Bruzewicz, Colin D, McConnell, Robert, Chiaverini, John, Sage, Jeremy M
Format Journal Article
LanguageEnglish
Published England Nature Publishing Group 28.09.2016
Nature Portfolio
Subjects
Arrays
Cooling
Electrodes
Electrons
Fault tolerance
Information processing
Lasers
United States > US
Massachusetts
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Summary: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.
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ISSN:2041-1723
2041-1723
DOI:10.1038/ncomms13005