Correction to: Communications Physics https://doi.org/10.1038/s42005-021-00641-0, published online 22 June 2021.

The PDF version of this article contained incomplete versions of Eqs. (12) and (19). In the old version, these two equations were erroneously typeset as

$$H - M\, <\, \widetilde r + M,$$
(12)

and

$$= \left\{ \begin{array}{*{20}{l}} 1 \hfill & r\, <\, r_{\mathrm{c}}^{-} \hfill \\ {1/2} \hfill & r_{\mathrm{c}}^{-}\, <\, r_{\mathrm{c}}^{+} \hfill \\ 0 \hfill & r \,> \, r_{\mathrm{c}}^ + ,\hfill \end{array} \right.$$
(19)

The correct version of the two equations are:

$$H - M \,<\, \widetilde r \,<\, H + M,$$
(12)

and

$$= \left\{ \begin{array}{*{20}{l}} 1 \hfill & r \,<\, r_{\mathrm{c}}^{-} \hfill \\ {1/2} \hfill & r_{\mathrm{c}}^ {-}\, <\, r\, <\, r_{\mathrm{c}}^{+} \hfill \\ 0 \hfill & r\, > \, r_{\mathrm{c}}^{+}, \hfill \end{array} \right.$$
(19)

respectively.

These have now been corrected in the PDF version of the article.