Numerical analysis of the radio-frequency single-electron transistor operation

TL;DR

This paper numerically analyzes the response and charge sensitivity of a radio-frequency single-electron transistor (RF-SET) in a non-superconducting state, focusing on how the tank circuit's quality factor affects performance.

Contribution

It provides a detailed numerical study of RF-SET operation and performance dependence on the tank circuit's quality factor Q, including impedance matching effects.

Findings

Performance varies with the quality factor Q.

Optimal sensitivity depends on impedance matching.

Numerical results guide RF-SET design improvements.

Abstract

We have analyzed numerically the response and noise-limited charge sensitivity of a radio-frequency single-electron transistor (RF-SET) in a non-superconducting state using the orthodox theory. In particular, we have studied the performance dependence on the quality factor Q of the tank circuit for Q both below and above the value corresponding to the impedance matching between the coaxial cable and SET.