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Twisted Cohomotopy implies level quantization of the full 6d Wess-Zumino term of the M5-brane
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The full 6d Hopf-Wess-Zumino term in the action functional for the M5-brane is anomalous as traditionally defined. What has been missing is a condition implying the higher analogue of level quantization familiar from the 2d Wess-Zumino term. We prove that the anomaly cancellation condition is implied by the hypothesis that the C-field is charge-quantized in twisted Cohomotopy theory. The proof follows by a twisted/parametrized generalization of the Hopf invariant, after identifying the full 6d Hopf-Wess-Zumino term with a twisted homotopy Whitehead integral formula, which we establish.
Forward citations
Cited by 2 Pith papers
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Anomaly Matching in 6d $\mathcal{N}=(2,0)$ SCFTs from M5 Cobordism
M5 bordism classifies the invertible phases of 6d (2,0) anomaly theories, and the Hopf-Wess-Zumino term is the phase that transgresses to the second Pontryagin class.
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Higher Gauge Theory via Differential Nonabelian Cohomology
Higher gauge fields receive a global infrared completion by electromagnetic flux quantization in differential nonabelian cohomology using cohesive homotopy theory, with applications to brane charges in K-theory and Co...
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