Gravity on a brane in infinite volume extra space

By G. Dvali, G. Gabadadze. 2000

431 citations recorded by the source corpus.

We generalize the mechanism proposed in a previous paper and show that a four-dimensional relativistic tensor theory of gravitation can be obtained on a delta-function brane in flat infinite-volume extra space. In particular, we demonstrate that the induced Ricci scalar gives rise to Einstein's gravity on a delta-function type brane if the number of space-time dimensions is bigger than five. The bulk space exhibits the phenomenon of infrared transparency. That is to say, the bulk can be probed by gravitons with vanishing four-dimensional momentum square, while it is unaccessible to higher modes. This provides an attractive framework for solving the cosmological constant problem.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/4e0bd7da5684155f2b0770da1ddd4f50a6193c8a

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Citations in the corpus

Massive Gravity (2014, methodology): “Furthermore, in the simplest models, as soon as the first massive mode is relevant so is an infinite tower of massive (Kaluza–Klein) modes and one is never in a regime where a single massive graviton dominates, or at least this was the situation until the Dvali–Gabadadze–Porrati model (DGP) [208, 20”
Cascading gravity and degravitation (2007, methodology): “of one such infrared (IR) modification is the DGP brane-world model [2, 3].”
Modified Gravity and Cosmology (2011, methodology): “Despite being extremely difficult to study, higher co-dimension braneworld models have been discussed in the literature (see, for example, [256, 316, 1250, 965, 13, 448, 449, 450, 518, 436, 669, 668, 381, 386, 388, 379, 387, 900, 12, 338, 339, 174, 280, 281, 277, 1023, 1022, 348, 349]).”
Categorizing Different Approaches to the Cosmological Constant Problem (2004, methodology): “In [90, 91, 92, 93, 94, 95], a model based on infinite volume extra dimensions is presented.”
Cosmology in generalized Proca theories (2016, background): “Concerning the higher-dimensional frameworks, the Dvali-Gabadadze-Porrati (DGP) model is one of the most important large-scale modifications of gravity [16, 17].”
f(R) Theories (2010, background): “The Newton’s law can be recovered by adding a 4-dimensional (4D) Einstein–Hilbert action sourced by the brane curvature to the 5D action [219].”
Distance priors from Planck final release (2018, background): “More importantly, equations for linear density perturbations in some DE models are difficult to build [17, 18].”