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arXiv · 1308.2078

Microwave control electrodes for scalable, parallel, single-qubit operations in a surface-electrode ion trap

D. P. L. Aude Craik·N. M. Linke·T. P. Harty·C. J. Ballance·D. M. Lucas·A. M. Steane·D. T. C. Allcock
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Abstract

We propose a surface ion trap design incorporating microwave control electrodes for near-field single-qubit control. The electrodes are arranged so as to provide arbitrary frequency, amplitude and polarization control of the microwave field in one trap zone, while a similar set of electrodes is used to null the residual microwave field in a neighbouring zone. The geometry is chosen to reduce the residual field to the 0.5% level without nulling fields; with nulling, the crosstalk may be kept close to the 0.01% level for realistic microwave amplitude and phase drift. Using standard photolithography and electroplating techniques, we have fabricated a proof-of-principle electrode array with two trapping zones. We discuss requirements for the microwave drive system and prospects for scalability to a large two-dimensional trap array.

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D. P. L. Aude Craik, N. M. Linke, T. P. Harty, C. J. Ballance, D. M. Lucas, A. M. Steane, D. T. C. Allcock. 2013-10-14. Microwave control electrodes for scalable, parallel, single-qubit operations in a surface-electrode ion trap. https://doi.org/10.1007/s00340-013-5716-7

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