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arXiv · 1206.0364

Controlling fast transport of cold trapped ions

Andreas Walther·Frank Ziesel·Thomas Ruster·Sam T. Dawkins·Konstantin Ott·Max Hettrich·Kilian Singer·Ferdinand Schmidt-Kaler·Ulrich Poschinger
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Abstract

We realize fast transport of ions in a segmented micro-structured Paul trap. The ion is shuttled over a distance of more than 10^4 times its groundstate wavefunction size during only 5 motional cycles of the trap (280 micro meter in 3.6 micro seconds). Starting from a ground-state-cooled ion, we find an optimized transport such that the energy increase is as low as 0.10 $\pm$ 0.01 motional quanta. In addition, we demonstrate that quantum information stored in a spin-motion entangled state is preserved throughout the transport. Shuttling operations are concatenated, as a proof-of-principle for the shuttling-based architecture to scalable ion trap quantum computing.

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Andreas Walther, Frank Ziesel, Thomas Ruster, Sam T. Dawkins, Konstantin Ott, Max Hettrich, Kilian Singer, Ferdinand Schmidt-Kaler, Ulrich Poschinger. 2012-06-02. Controlling fast transport of cold trapped ions. https://doi.org/10.1103/physrevlett.109.080501

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