Aalto University physicists in Finland have set a new benchmark in quantum computing by achieving a record-breaking millisecond coherence in a transmon qubit — nearly doubling prior limits. This development not only opens the door to far more powerful and stable quantum computations but also reduces the burden of error correction.
They made >10,000 attempts and reported the average.
You can see their graphs in the Nature journal article:
https://www.nature.com/articles/s41467-025-61126-0