Gravitational backreaction effects on the holographic phase transition
- CERN Physics Department, Theory Division, CH-1211 Geneva 23 (Switzerland)
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.
- OSTI ID:
- 21432359
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 8; Other Information: DOI: 10.1103/PhysRevD.82.083513; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
EXPANSION
GAUGE INVARIANCE
GRAVITATIONAL WAVE DETECTORS
GRAVITATIONAL WAVES
INTERFERENCE
LASER RADIATION
MASS
METRICS
PHASE TRANSFORMATIONS
SCALAR FIELDS
SIMULATION
SPACE
STABILIZATION
ELECTROMAGNETIC RADIATION
INVARIANCE PRINCIPLES
MEASURING INSTRUMENTS
RADIATION DETECTORS
RADIATIONS