Suppressing on-chip electromagnetic crosstalk for spin qubit devices
We report the development and performance of on-chip interconnects designed to suppress electromagnetic 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...
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Veröffentlicht in: | Journal of applied physics 2012-09, Vol.112 (6) |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | We report the development and performance of on-chip interconnects designed to suppress electromagnetic 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 miniaturised 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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ISSN: | 0021-8979 1089-7550 |
DOI: | 10.1063/1.4752863 |