Journal article

Calculable toy model of the string-theory landscape

KR Dienes, E Dudas, T Gherghetta

PHYSICAL REVIEW D | AMER PHYSICAL SOC | Published : 2005

Abstract

Motivated by recent discussions of the string-theory landscape, we propose field-theoretic realizations of models with large numbers of vacua. These models contain multiple U(1) gauge groups, and can be interpreted as deconstructed versions of higher-dimensional gauge theory models with fluxes in the compact space. We find that the vacuum structure of these models is very rich, defined by parameter-space regions with different classes of stable vacua separated by boundaries. This allows us to explicitly calculate physical quantities such as the supersymmetry-breaking scale, the presence or absence of R symmetries, and probabilities of stable versus unstable vacua. Furthermore, we find that t..

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University of Melbourne Researchers