World record qubit operation accuracy: 0.000015% error rate, nearly an order of magnitude improvement over prior record set a decade ago

https://www.eurekalert.org/news-releases/1086790

"precision achieved using trapped calcium ion qubit... unlike using lasers, quantum state controlled using electronic microwave signals for greater stability, lower cost, greater robustness... ease of integration into ion trapping chips, room temperature, without magnetic shielding... future: extend to 2-qubit gates which function together"