No-scale supergravity is the appropriate general framework for low-energy effective field theories derived from string theory. The simplest no-scale Kähler potential with a single chiral field corresponds to a compactification to flat Minkowski space with a single volume modulus, but generalizations to single-field no-scale models with de Sitter vacua are also known. In this paper we generalize these de Sitter constructions to two- and multi-field models of the types occurring in string compactifications with more than one relevant modulus. We discuss the conditions for stability of the de Sitter solutions and holomorphy of the superpotential, and give examples whose superpotential contains only integer powers of the chiral fields.
Bibliographical noteFunding Information:
B.N. thanks William Linch III and Daniel Butter for useful discussions. The work of J.E. was supported in part by STFC (U.K.) via the research grant ST/L000258/1 and in part by the Estonian Research Council via a Mobilitas Pluss grant. The work of B.N. was supported by the Mitchell/Heep Chair in High Energy Physics, Texas A&M University. The work of D.V.N. was supported in part by the DOE grant DE-FG02-13ER42020 and in part by the Alexander S. Onassis Public Benefit Foundation. The work of K.A.O. was supported in part by DOE grant DE-SC0011842 at the University of Minnesota.
© 2018, The Author(s).
- Supergravity Models
- Superstring Vacua