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String Theory on AdS3: Some Open Questions

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arxiv hep-th/9908189 v2 pith:VHGYCDWI submitted 1999-08-28 hep-th

String Theory on AdS3: Some Open Questions

classification hep-th
keywords stringads3questionssometheoryveryaccountanti-de
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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String theory on curved backgrounds has received much attention on account of both its own interest, and of its relation with gauge theories. Despite the progress made in various directions, several quite elementary questions remain unanswered, in particular in the very simple case of three-dimensional anti-de Sitter space. I will very briefly review these problems, discuss in some detail the important issue of constructing a consistent spectrum for a string propagating on ADS3 plus torsion background, and comment on potential solutions.

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  1. Non-supersymmetric strings on AdS$_3$: a world-sheet perspective

    hep-th 2025-12 conditional novelty 6.0

    On AdS3×S3×S3×S1, a Wilson-line deformation of the Spin(16)×Spin(16)⋊Z2 heterotic string produces a level-matched tachyon, so the classical moduli space contains unstable regions.