Sensitive radio-frequency measurements of a quantum dot by tuning to perfect impedance matching
Electrical readout of spin qubits requires fast and sensitive measurements, which are hindered by poor impedance matching to the device. We demonstrate perfect impedance matching in a radio-frequency readout circuit, using voltage-tunable varactors to cancel out parasitic capacitances. An optimized...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal article |
| Published: |
American Physical Society
2016
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