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arxiv 1209.3906 v1 pith:ACFAS3IR submitted 2012-09-18 hep-th hep-ph

Classification of symmetric toroidal orbifolds

classification hep-th hep-ph
keywords groupsorbifoldsclassificationpointtoroidalabeliansymmetricbreaking
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We provide a complete classification of six-dimensional symmetric toroidal orbifolds which yield N>=1 supersymmetry in 4D for the heterotic string. Our strategy is based on a classification of crystallographic space groups in six dimensions. We find in total 520 inequivalent toroidal orbifolds, 162 of them with Abelian point groups such as Z_3, Z_4, Z_6-I etc. and 358 with non-Abelian point groups such as S_3, D_4, A_4 etc. We also briefly explore the properties of some orbifolds with Abelian point groups and N=1, i.e. specify the Hodge numbers and comment on the possible mechanisms (local or non-local) of gauge symmetry breaking.

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Cited by 2 Pith papers

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

  1. Asymmetric orbifolds with vanishing one-loop vacuum energy

    hep-th 2026-02 unverdicted novelty 7.0

    Non-supersymmetric type II asymmetric orbifolds with Z_k x Z_k Abelian point groups (k=2,3,4) admit vanishing one-loop vacuum energy via sector-wise conservation of a supercharge-like operator.

  2. Probing String-Theory-Inspired Topologies of the Early Universe through CMB Temperature and Polarization Anisotropies

    astro-ph.CO 2026-05 unverdicted novelty 4.0

    Reexamination of Planck CMB data finds a possible spatial-parity-breaking signal consistent with six extra dimensions compactified toroidally at the GUT scale before inflation.