Gate reflectometry of single-electron box arrays using calibrated low temperature matching networks.

ABSTRACT: Sensitive dispersive readouts of single-electron devices ("gate reflectometry") rely on one-port radio-frequency (RF) reflectometry to read out the state of the sensor. A standard practice in reflectometry measurements is to design an impedance transformer to match the impedance of the load to the characteristic impedance of the transmission line and thus obtain the best sensitivity and signal-to-noise ratio. This is particularly important for measuring large impedances, typical for dispersive readouts of single-electron devices because even a small mismatch will cause a strong signal degradation. When performing RF measurements, a calibration and error correction of the measurement apparatus must be performed in order to remove errors caused by unavoidable non-idealities of the measuremen

SUBMITTER: Filmer MJ 

PROVIDER: S-EPMC8866512 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature