Yeah, it’s slightly buried - the publication with all the details, including the math is linked to in footnote 3 of the explainer article, https://pubs.aip.org

Yeah, it’s slightly buried - the publication with all the details, including the math is linked to in footnote 3 of the explainer article, https://pubs.aip.org/aip/pop/article/29/6/062103/2847827/Progress-toward-fusion-energy-breakeven-and-gain https://pubs.aip.org/aip/pop/article/29/6/062103/2847827/Pro... It’s open access and you can download the PDF directly from there.