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Brane Induced Gravity: Codimension-2
High Energy Physics - Theory · Submitted 21 Nov 2007
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim This shows how the vacuum energy problem manifests in BIG: instead of tuning vacuum energy to adjust the 4D curvature, generically one must tune it to get the desired crossover scales and the hierarchy between the scales governing the 4D \to 5D \to 6D transitions.
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The abstract, sentence by sentence
We review the results of arXiv:hep-th/0703190, on brane induced gravity (BIG) in 6D. Among a large diversity of regulated codimension-2 branes, we find that for near-critical tensions branes live inside very deep throats which efficiently compactify the angular dimension. In there, 4D gravity first changes to 5D, and only later to 6D. The crossover from 4D to 5D is independent of the tension, but the crossover from 5D to 6D is not. This shows how the vacuum energy problem manifests in BIG: instead of tuning vacuum energy to adjust the 4D curvature, generically one must tune it to get the desired crossover scales and the hierarchy between the scales governing the 4D \to 5D \to 6D transitions. In the near-critical limit, linearized perturbation theory remains under control below the crossover scale, and we find that linearized gravity around the vacuum looks like a scalar-tensor theory.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We review the results of arXiv:hep-th/0703190, on brane induced gravity (BIG) in 6D. | background 0.74 | 0.08 | 0.04 | asserted 0.79 |
| s1 | Among a large diversity of regulated codimension-2 branes, we find that for near-critical tensions branes live inside very deep throats which efficiently compactify the angular dimension. | result 0.99 | 0.77 | 0.28 | asserted 1.00 |
| s2 | In there, 4D gravity first changes to 5D, and only later to 6D. | result 0.99 | 0.46 | 0.11 | asserted 1.00 |
| s3 | The crossover from 4D to 5D is independent of the tension, but the crossover from 5D to 6D is not. | result 1.00 | 0.72 | 0.15 | asserted 1.00 |
| s4 | This shows how the vacuum energy problem manifests in BIG: instead of tuning vacuum energy to adjust the 4D curvature, generically one must tune it to get the desired crossover scales and the hierarchy between the scales governing the 4D \to 5D \to 6D transitions. | interpretation 1.00 | 0.46 | 0.52 | asserted 1.00 |
| s5 | In the near-critical limit, linearized perturbation theory remains under control below the crossover scale, and we find that linearized gravity around the vacuum looks like a scalar-tensor theory. | result 0.99 | 0.90 | 0.15 | asserted 1.00 |
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The paper
Original abstract
We review the results of arXiv:hep-th/0703190, on brane induced gravity (BIG) in 6D. Among a large diversity of regulated codimension-2 branes, we find that for near-critical tensions branes live inside very deep throats which efficiently compactify the angular dimension. In there, 4D gravity first changes to 5D, and only later to 6D. The crossover from 4D to 5D is independent of the tension, but the crossover from 5D to 6D is not. This shows how the vacuum energy problem manifests in BIG: instead of tuning vacuum energy to adjust the 4D curvature, generically one must tune it to get the desired crossover scales and the hierarchy between the scales governing the 4D \to 5D \to 6D transitions. In the near-critical limit, linearized perturbation theory remains under control below the crossover scale, and we find that linearized gravity around the vacuum looks like a scalar-tensor theory.
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References
How the literature uses it
8 arXiv papers cite this in 12 sentences
Papers citing it · 10 sentences without a confident label
Cites it as background 2 papers
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An idea that our universe might be higher dimensional on large cosmological scales was explored in the so-called Dvali-Gabadadze-Porrati (DGP) model [ref] (see also cascading gravity in [ref] ).
Multibrane DGP model: Our universe as a stack of $(2+1)$-dim branes · Introduction · 0.95
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Minkowski [ref] , theories with extra dimensions [ref] (for a review see Ref. [ref] ) and
Infrared Modified Gravity with Dynamical Torsion · Introduction and summary · 0.98
What it cites · 1 sentence without a confident label
Cites as background 1 paper
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Also, some ideas along these lines were explored in a setup with codimension-3 branes with a solid deficit angle in [ref] .
Cosmological Constant and Fermi-Bose Degeneracy · Introduction · 0.85
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