Abstract
We consider the spectrum of BPS states of the heterotic sigma model with (0, 8) supersymmetry and T 8 target, as well as its second-quantized counterpart. We show that the counting function for such states is intimately related to Borcherds’ automorphic form Φ12, a modular form which exhibits automorphy for O(2, 26; ℤ). We comment on possible implications for Umbral moonshine and theories of AdS3 gravity.
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ArXiv ePrint: 1610.00707
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Harrison, S.M., Kachru, S., Paquette, N.M. et al. Heterotic sigma models on T 8 and the Borcherds automorphic form Φ12 . J. High Energ. Phys. 2017, 121 (2017). https://doi.org/10.1007/JHEP10(2017)121
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DOI: https://doi.org/10.1007/JHEP10(2017)121