Detection of the Quantum Capacitance of a Point Contact via Dispersive Gate Sensing
Detection of the Quantum Capacitance of a Point Contact via Dispersive Gate Sensing
The technique of dispersive gate sensing (DGS) uses a single electrode to readout a qubit by detecting the change in quantum capacitance due to single electron tunnelling. Here, we extend DGS from the detection of discrete tunnel events to the open regime, where many electrons are transported via partially- or …