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The Semispin Groups in String Theory

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arxiv hep-th/9906059 v1 pith:MTKVZAAS submitted 1999-06-08 hep-th

classification hep-th
keywords commonglobalstringsubgroupactuallydiscussionsdualityexists
verification ladder T0 review T1 audit T2 compute T3 formal

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In discussions of the T-duality between the two heterotic string theories, the duality is actually implemented through the "common" SO(16) x SO(16) subgroup of "SO(32)" and E_8 x E_8. In fact, however, a global investigation shows that no such "common" subgroup exists. This paper is a survey of the relevant global properties of Spin(32)/Z_2 and its subgroups.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Non-supersymmetric dualities beyond the gauge algebra

    hep-th 2026-06 unverdicted novelty 6.0 of 10

    Verification of Blum-Dienes and Bergman-Gaberdiel dualities shows agreement in gauge group global forms from orientifold brane states and internal lattices, with one subtle projection exception.

  2. Towards a Heterotic Axiverse

    hep-th 2025-09 conditional novelty 6.0 of 10

    Generic heterotic axions are heavier than in type IIB; the Strong CP problem is typically unsolved, and a light fuzzy dark matter axion requires a no-gaugino-condensation anisotropic fibred Calabi-Yau.

  3. Non-supersymmetric branes and discrete topological terms

    hep-th 2025-07 conditional novelty 6.0 of 10

    A direct computation from the tentative NS5-brane spectrum gives the opposite Z3 topological term (1/3 vs 2/3) from Tachikawa-Zhang, so the spectrum or the inflow interpretation must change.

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