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, whilst 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 2-D trap array. © 2013 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Aude Craik, D. P. L., Linke, N. M., Harty, T. P., Ballance, C. J., Lucas, D. M., Steane, A. M., & Allcock, D. T. C. (2014). Microwave control electrodes for scalable, parallel, single-qubit operations in a surface-electrode ion trap. Applied Physics B: Lasers and Optics, 114(1–2), 3–10. https://doi.org/10.1007/s00340-013-5716-7
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