I wish this had more details about how it works.

"Instead, scientists at Sussex have invented a simple method where voltages are applied to a quantum computer microchip (without having to align laser beams) - to the same effect.

Professor Winfried Hensinger and his team also succeeded in demonstrating the core building block of this new method with an impressively low error rate at their quantum computing facility at Sussex."

A short film about Professor Hensinger's work can be found here: https://www.youtube.com/watch?v=naqHy5MAYXw