Stable de Sitter vacua in four-dimensional supergravity originating from five dimensions

Journal Article · Sat Nov 15 04:00:00 EST 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.105001· OSTI ID:21250932

Oegetbil, O ^[1]

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1. Physics Department, Pennsylvania State University, University Park, Pennsylvania 16802 (United States)

The five-dimensional stable de Sitter ground states in N=2 supergravity obtained by gauging SO(1,1) symmetry of the real symmetric scalar manifold (in particular, a generic Jordan family manifold of the vector multiplets) simultaneously with a subgroup R{sub s} of the R-symmetry group descend to four-dimensional de Sitter ground states under certain conditions. First, the holomorphic section in four dimensions has to be chosen carefully by using the symplectic freedom in four dimensions; second, a group contraction is necessary to bring the potential into a desired form. Under these conditions, stable de Sitter vacua can be obtained in dimensionally reduced theories (from 5D to 4D) if the semidirect product of SO(1,1) with R{sup (1,1)} together with a simultaneous R{sub s} is gauged. We review the stable de Sitter vacua in four dimensions found in earlier literature for N=2 Yang-Mills Einstein supergravity with the SO(2,1)xR{sub s} gauge group in a symplectic basis that comes naturally after dimensional reduction. Although this particular gauge group does not descend directly from five dimensions, we show that its contraction does. Hence, two different theories overlap in certain limits. Examples of stable de Sitter vacua are given for the cases: (i) R{sub s}=U(1){sub R}, (ii) R{sub s}=SU(2){sub R}, and (iii) N=2 Yang-Mills/Einstein supergravity theory coupled to a universal hypermultiplet. We conclude with a discussion regarding the extension of our results to supergravity theories with more general homogeneous scalar manifolds.

• OSTI ID: 21250932
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 10 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CONTRACTION
DE SITTER GROUP
FOUR-DIMENSIONAL CALCULATIONS
GROUND STATES
MANY-DIMENSIONAL CALCULATIONS
MULTIPLETS
POTENTIALS
REDUCTION
SO GROUPS
SU-2 GROUPS
SUPERGRAVITY
SYMMETRY
U-1 GROUPS
YANG-MILLS THEORY