Suppressing On-Chip EM Crosstalk for Spin Qubit Devices

S. Blanvillain; J. I. Colless; D. J. Reilly; H. Lu; A. C. Gossard

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arXiv · 1205.4072

Suppressing On-Chip EM Crosstalk for Spin Qubit Devices

S. Blanvillain·J. I. Colless·D. J. Reilly·H. Lu·A. C. Gossard

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Abstract

We report the development and performance of on-chip interconnects designed to suppress electromagnetic (EM) crosstalk in spin qubit device architectures with the large number of gate electrodes needed for multi- qubit operation. Our design improves the performance of typical device interconnects via the use of minia- turised ohmic contacts and interspersed ground guards. Low temperature measurements and numerical simulation confirm that control and readout signal crosstalk can be suppressed to levels of order 1%, from dc to 1 GHz.

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S. Blanvillain, J. I. Colless, D. J. Reilly, H. Lu, A. C. Gossard. 2012-05-18. Suppressing On-Chip EM Crosstalk for Spin Qubit Devices. https://arxiv.org/abs/1205.4072

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