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arXiv · 1106.2730

Electric field compensation and sensing with a single ion in a planar trap

Sankaranarayanan Selvarajan·Nikos Daniilidis·Sönke Möller·Rob Clark·Frank Ziesel·Kilian Singer·Ferdinand Schmidt-Kaler·Hartmut Häffner
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Abstract

We use a single ion as an movable electric field sensor with accuracies on the order of a few V/m. For this, we compensate undesired static electric fields in a planar RF trap and characterize the static fields over an extended region along the trap axis. We observe a strong buildup of stray charges around the loading region on the trap resulting in an electric field of up to 1.3 kV/m at the ion position. We also find that the profile of the stray field remains constant over a time span of a few months.

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Sankaranarayanan Selvarajan, Nikos Daniilidis, Sönke Möller, Rob Clark, Frank Ziesel, Kilian Singer, Ferdinand Schmidt-Kaler, Hartmut Häffner. 2011-06-10. Electric field compensation and sensing with a single ion in a planar trap. https://arxiv.org/abs/1106.2730

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