Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-08-25
JHEP 1012:016,2010
Physics
High Energy Physics
High Energy Physics - Theory
42 pages; v2: typo corrected
Scientific paper
10.1007/JHEP12(2010)016
We study compactifications of eleven-dimensional supergravity on Calabi-Yau threefolds times a circle, with a duality twist along the circle a la Scherk-Schwarz. This leads to four-dimensional N=2 gauged supergravity with a semi-positive definite potential for the scalar fields, which we derive explicitly. Furthermore, inspired by the orientifold projection in string theory, we define a truncation to N=1 supergravity. We determine the D-terms, Kaehler- and superpotentials for these models and study the properties of the vacua. Finally, we point out a relation to M-theory compactifications on seven-dimensional manifolds with G2 structure.
Looyestijn Hugo
Plauschinn Erik
Vandoren Stefan
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