Journal
APPLIED PHYSICS B-LASERS AND OPTICS
Volume 114, Issue 1-2, Pages 3-10Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00340-013-5716-7
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Funding
- EPSRC Science and Innovation Award
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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.
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