Correction to: Nature Photonics https://doi.org/10.1038/s41566-021-00926-4, published online 10 January 2022.

In the version of article initially published, there were various composition errors in the Fig. 2 title and main text. The Fig. 2 title should have read “Initial conditions of coupled oscillators.” In the main text, first paragraph below Eq. (2), “alpha_n” should have read “αn,” while in the first paragraph below Eq. (4), “lambda” should have read “λ.” Further, in the last paragraph of Results, “E(kobs)” should have appeared as “〈E(kobs)〉.”

The errors have been corrected in the HTML and PDF versions of the article.