2009

High fidelity transport of trapped-ion qubits through an X-junction trap array

Blakestad, R. B., Ospelkaus, C., VanDevender, A. P. et al.

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We report reliable transport of 9Be+ ions through a 2-D trap array that includes a separate loading/reservoir zone and an "X-junction".

During transport the ion's kinetic energy in its local well increases by only a few motional quanta and internal-state coherences are preserved.
We also examine two sources of energy gain during transport: a particular radio-frequency (RF) noise heating mechanism and digital sampling noise.
Such studies are important to achieve scaling in a trapped-ion quantum information processor.

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