Progress towards non-destructive detection of the spin of trapped electrons

Trapped electron spin qubits are emerging as a powerful platform for quantum computing, combining the light mass of electrons for rapid gate speeds with the long coherence times seen in trapped ions. By employing a simple two-level spin system, this approach avoids unwanted leakage and achieves high-fidelity operations. We have successfully demonstrated trapping at room temperature with detection efficiencies up to 60% and have measured trap frequencies using a three-layer PCB trap. However, further challenges remain in trapping, detecting, and controlling electrons under cryogenic conditions. Here, we present our recent progress on the development of a new single-layer PCB trap at room temperature and the integration of a 3D-printed trap design into our cryogenic setup. In the future, we plan to implement a non-destructive detection of the electron spin state at cryogenic temperatures.