State readout is a key requirement for a quantum computer. For semiconductor-based qubit
devices it is usually accomplished using a separate mesoscopic electrometer. Here we …

The rise of quantum computing has prompted the interest in the field of cryogenic
electronics. Carbon-based materials hold great promise in the area of cryogenic electronics …

We investigate radio-frequency (rf) reflectometry in a tunable carbon nanotube double
quantum dot coupled to a resonant circuit. By measuring the in-phase and quadrature …

Single electron transistors (SETs) fabricated from single-walled carbon nanotubes (SWNTs)
can be operated as highly sensitive charge detectors reaching sensitivity levels comparable …

We demonstrate fast and ultrasensitive charge detection with a cavity-embedded Cooper
pair transistor (cCPT) via dispersive readout of its Josephson inductance. We report a …

The high-frequency transconductance and current noise of top-gated single carbon
nanotube transistors have been measured and used to investigate hot electron effects in …

We have studied the static and dynamical properties of a graphene microwave
nanotransistor to be used as sensitive fast charge detectors. The channel consists of …

Two-dimensional topological insulators are of great interest, with predicted topological
protection of one-dimensional helical edge states at their boundaries. Shot noise, the …

We investigate the nonlinear dynamics of high aspect ratio single wall carbon nanotubes
(SWCNTs) both theoretically and experimentally. A nonlinear stretchable string model was …

This thesis is devoted to the study of current correlation of single-electron beams in a
ballistic quantum conductor. A mesoscopic capacitor is used as an on-demand single …