Scalable Quantum Computing Takes a Leap Forward with Integrated Photonics

Researchers at ETH Zurich have made a breakthrough in building scalable quantum computers. They overcame a major hurdle in trapped-ion quantum computing: instability in ion transport caused by the interaction between optical components and the ion trap. Using ingenious compensation methods, they achieved over 99% fidelity for single-qubit logic gates, paving the way for larger, more powerful quantum computers. This research represents a significant step towards practical quantum computing.