Oh boy! Every time you think you're getting your head around something there's a new dimension to consider.
This article's over a year old so doesn't mention the recent Honeywell announcement, but explains in more-or-less understandable terms how trapped-ion quantum computing technology works
Let’s have a high-level overview. First, we heat up Calcium to 800°C to form a vapor. We bombard it with electrons to strip out the outer electron. Then, we trap these ions with an electrical field in ultra-high vacuum. We laser-cool these ions to the motional ground state (details later) and use this state as the |0⟩. These ions are now close to stationary. Their states, as well as their motion, can be controlled with high precision using lasers, microwave or radio-frequency fields, which form the foundations of the quantum gates. To measure the qubits’ states, we shine them with another laser with a specific calculated frequency. If the qubit is in one of the states say |1⟩, it will fluoresce else it remains dark.
https://medium.com/@jonathan_hui/qc-how-to-build-a-quantum-computer-with-trapped-ions-88b958b81484
