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Gravity in warped compactifications and the holographic stress tensor

Sebastian de Haro1, Kostas Skenderis2 and Sergey N Solodukhin3

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We study gravitational aspects of brane-world scenarios. We show that the bulk Einstein equations together with the junction condition imply that the induced metric on the brane satisfies the full nonlinear Einstein equations with a specific effective stress-energy tensor. This result holds for any value of the bulk cosmological constant. The analysis is done by either placing the brane close to infinity or by considering the local geometry near the brane. In the case that the bulk spacetime is asymptotically AdS, we show that the effective stress-energy tensor is equal to the sum of the stress-energy tensor of matter localized on the brane and of the holographic stress-energy tensor appearing in the AdS/CFT duality. In addition, there are specific higher-curvature corrections to Einstein's equations. We analyse in detail the case of asymptotically flat spacetime. We obtain asymptotic solutions of Einstein's equations and show that the effective Newton constant on the brane depends on the position of the brane.


PACS

11.25.Wx String and brane phenomenology

04.20.Ha Asymptotic structure

98.80.Es Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc)

11.25.Hf Conformal field theory, algebraic structures

MSC

81T30 String and superstring theories; other extended objects (e.g., branes) (See also 83E30)

83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)

81T40 Two-dimensional field theories, conformal field theories, etc.

83C30 Asymptotic procedures (radiation, news functions, H-spaces, etc.)

Subjects

Gravitation and cosmology

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 16 (21 August 2001)

Received 5 March 2001

Published 1 August 2001



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