UV Completions for Non-Critical Strings
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102 pages
Published in:
- JHEP 07 (2016) 045
- Published: Jul 11, 2016
e-Print:
- 1602.04221 [hep-th]
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Abstract: (Springer)
Compactifications of the physical superstring to two dimensions provide a general template for realizing 2D conformal field theories coupled to worldsheet gravity, i.e. non-critical string theories. Motivated by this observation, in this paper we determine the quasi-topological 8D theory which governs the vacua of 2D = (0, 2) gauged linear sigma models (GLSMs) obtained from compactifications of type I and heterotic strings on a Calabi-Yau fourfold. We also determine the quasi-topological 6D theory governing the 2D vacua of intersecting 7-branes in compactifications of F-theory on an elliptically fibered Calabi-Yau fivefold, where matter fields and interaction terms localize on lower-dimensional subspaces, i.e. defect operators. To cancel anomalies / cancel tadpoles, these GLSMs must couple to additional chiral sectors, which in some cases do not admit a known description in terms of a UV GLSM. Additionally, we find that constructing an anomaly free spectrum can sometimes break supersymmetry due to spacetime filling anti-branes. We also study various canonical examples such as the standard embedding of heterotic strings on a Calabi-Yau fourfold and F-theoretic “rigid clusters” with no local deformation moduli of the elliptic fibration.Note:
- v4: 102 pages, 2 figures, clarifications added
- Conformal and W Symmetry
- F-Theory
- Field Theories in Lower Dimensions
- Superstrings and Heterotic Strings
- string model: heterotic
- string: compactification
- F-theory: compactification
- field theory: conformal
- field theory: coupling
- sigma model: linear
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