Incidentally, today Thomas Nikolaus and Konrad Waldorf came out with their long-announced discussion of how Hull's T-Folds (a subtle "non-geometric" generalization of perturbative string backgrounds) are realized in the higher differential geometry of higher principal bundles (catgorical bundles) for higher structure group the T-duality 2-group:(adsbygoogle = window.adsbygoogle || []).push({});

Thomas Nikolaus, Konrad Waldorf,

"Higher geometry for non-geometric T-duals"

(arXiv:1804.00677)

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# Insights Why Higher Category Theory in Physics? - Comments

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