Geometry of the New Massive Gravity Domain Walls

Silva, U. Camara da; Sotkov, G. M.

doi:10.22323/1.124.0026

Proceedings of 4th International Conference on Fundamental Interactions — PoS(ICFI 2010) 2011

DOI: 10.22323/1.124.0026

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Geometry of the New Massive Gravity Domain Walls

U. Camara da Silva¹,

G. M. Sotkov²

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2013

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Holographic RG flows from Quasi-Topological Gravity

Silva

Sotkov

2013

Nuclear Physics B

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We study the long distance behaviour of brane theories with quasi-localized gravity. The 5D effective theory at large scales follows from a holographic renormalization group flow. As intuitively expected, the graviton is effectively four dimensional at intermediate scales and becomes five dimensional at large scales. However in the holographic effective theory the essentially 4D radion dominates at long distances and gives rise to scalar anti-gravity. The holographic description shows that at large distances the GRS model is equivalent to the model recently proposed by Dvali, Gabadadze and Porrati (DGP), where a tensionless brane is embedded into 5D Minkowski space, with an additional induced 4D Einstein-Hilbert term on the brane. In the holographic description the radion of the GRS model is automatically localized on the tensionless brane, and provides the ghost-like field necessary to cancel the extra graviton polarization of the DGP model. Thus, there is a holographic duality between these theories. This analysis provides physical insight into how the GRS model works at intermediate scales; in particular it sheds light on the size of the width of the graviton resonance, and also demonstrates how the holographic RG can be used as a practical tool for calculations.

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Holographic RG flows from Quasi-Topological Gravity

Silva

Sotkov

2013

Nuclear Physics B

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Geometry of the New Massive Gravity Domain Walls

Cited by 1 publication

References 7 publications

Holographic RG flows from Quasi-Topological Gravity

Holographic RG flows from Quasi-Topological Gravity

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