Henheik SJ, Teufel S. 2021. Justifying Kubo’s formula for gapped systems at zero temperature: A brief review and some new results. Reviews in Mathematical Physics. 33(01), 2060004.
LibreCat: https://research-explorer.ista.ac.at/record/9285
DOI: 10.1142/s0129055x20600041
arXiv: 2002.08669