期刊
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
卷 66, 期 5, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prop.201800027
关键词
compactification; heterotic string
资金
- National Science Foundation [NSF PHY11-25915]
- Agence Nationale de la Recherche [12-BS05-003-01]
- NSF [PHY-1316960]
We study the constraints of spacetime supersymmetry for perturbative three- and two-dimensional Minkowski vacua of the critical heterotic string. Assuming a standard RNS construction of the spacetime supersymmetry generators and a compact unitary internal superconformal worldsheet theory, we describe the worldsheet structures associated to various spacetime supersymmetries. In three dimensions we show that there are no CFT surprises: each allowed spacetime supersymmetry is realized by a supergravity compactification. As a recent orbifold construction shows, in two dimensions there are more exotic possibilities, and we discuss how these fit into our analysis. The constraints of spacetime supersymmetry for perturbative three- and two-dimensional Minkowski vacua of the critical heterotic string are investigated. Assuming a standard RNS construction of the spacetime supersymmetry generators and a compact unitary internal superconformal worldsheet theory, the authors describe the worldsheet structures associated to various spacetime supersymmetries. In three dimensions it is shown that there are no CFT surprises: each allowed spacetime supersymmetry is realized by a supergravity compactification.
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