Single-Electron Measurement with Skipper-CCDs: Towards a Quantum Realization of the Ampere

This talk introduces the Skipper-CCD as a device capable of single-electron measurement and explores some key aspects of its instrumentation and potential new applications. With its single-electron resolution and built-in charge sensing, the Skipper-CCD enables self-calibration of the charge packets. We discuss the potential of this technology for the realization of the ampere. Experimental results will be presented, illustrating the key functionalities of this technology in manipulating both small and large electron charge packets. This includes a comparison of the charge generated, self-measured, and drained by the sensor, alongside measurements from an electrometer. These results were obtained using a standard sensor and readout electronics, without specific optimizations for this application. The aim is to explore the Skipper-CCD's potential in realizing an electron-based current source.