Abstract: A set of universal fault-tolerant logical gates in quantum error correcting codes is necessary for quantum computing. Transversal operations applied independently on each qubit in a code block are naturally fault-tolerant and easy to implement, but the Eastin-Knill theorem states that the resulting discrete gate set cannot be universal. Circumventing this requires complex protocols such as magic state distillation, code switching, etc. Surface code error correction has been demonstrated on several experimental platforms. This talk proposes an adaptive protocol for continuously tunable logical gates in the surface code using only transversal operations and syndrome measurements already needed for error correction.
Pizza and drinks will be served after the seminar in ATL 2117.