Correction to: Nature https://doi.org/10.1038/s41586-021-03866-9 Published online 22 September 2021

In the version of this Article originally published, there was an error in Fig. 1b. Specifically, the x-axis label mistakenly reported units as micrometres rather than microjoules. The corrected axis label now reads: “Pump fluence (μJ cm–2).” The original Article has been corrected online.