On four-dimensional N=1 type I compactifications
Jun, 199826 pages
Published in:
- Nucl.Phys.B 535 (1998) 311-334
e-Print:
- hep-th/9806008 [hep-th]
Report number:
- HUTP-98-A031,
- NUB-3178
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Abstract:
We consider four dimensional N=1 supersymmetric Type I compactifications on toroidal orbifolds T^6/G. In particular, we focus on the Type I vacua which are perturbative from the orientifold viewpoint, that is, on the compactifications with well defined world-sheet expansion. The number of such models is rather constrained. This allows us to study all such vacua. This, in particular, involves considering compactifications with non-trivial NS-NS antisymmetric tensor backgrounds. We derive massless spectra for these models, and also compute superpotentials. We review the reasons responsible for such a limited number of perturbative Type I compactifications on toroidal orbifolds (which include Abelian as well as non-Abelian cases). As an aside, we generalized the recent work on large N gauge theories from orientifolds to include a non-Abelian orbifold. This also provides an important independent check for perturbative consistency of the corresponding Type I compactification.Note:
- 26 pages, revtex, 1 eps figure, minor misprints corrected (to appear in Nucl. Phys. B) Report-no: HUTP-98/A031, NUB 3178
- string model
- supersymmetry
- compactification: orbifold
- vacuum state
- field theory: torus
- group theory: representation
- bibliography
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