Gravitational backreaction effects on the holographic phase transition

T. Konstandin, G. Nardini, M. Quiros

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Abstract

We study radion stabilization in the compact Randall-Sundrum model by introducing a bulk scalar field, as in the Goldberger and Wise mechanism, but (partially) taking into account the backreactions from the scalar field on the metric. Our generalization reconciles the radion potential found by Goldberger and Wise with the radion mass obtained with the so-called superpotential method where backreaction is fully considered. Moreover we study the holographic phase transition and its gravitational wave signals in this model. The improved control over backreactions opens up a large region in parameter space and leads, compared to former analysis, to weaker constraints on the rank N of the dual gauge theory. We conclude that, in the regime where the 1/N expansion is justified, the gravitational wave signal is detectable by LISA. © 2010 The American Physical Society.
Original languageEnglish
Article number083513
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume82
Issue number8
DOIs
Publication statusPublished - 12 Oct 2010

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    Konstandin, T., Nardini, G., & Quiros, M. (2010). Gravitational backreaction effects on the holographic phase transition. Physical Review D - Particles, Fields, Gravitation and Cosmology, 82(8), [083513]. https://doi.org/10.1103/PhysRevD.82.083513