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Living on the edge: cosmology on the boundary of anti-de Sitter space
High Energy Physics - Theory · Submitted 7 Apr 2000
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We demonstrate that a k=+1 closed FLRW universe is the most natural option, though the scale factor could quite easily be so large as to make it operationally indistinguishable from a k=0 spatially flat universe.
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The abstract, sentence by sentence
We sketch a particularly simple and compelling version of D-brane cosmology. Inspired by the semi-phenomenological Randall--Sundrum models, and their cosmological generalizations, we develop a variant that contains a single (3+1)-dimensional D-brane which is located on the boundary of a single bulk (4+1)-dimensional region. The D-brane boundary is itself to be interpreted as our visible universe, with ordinary matter (planets, stars, galaxies) being trapped on this D-brane by string theory effects. The (4+1)-dimensional bulk is, in its simplest implementation, adS_{4+1}, anti-de Sitter space. We demonstrate that a k=+1 closed FLRW universe is the most natural option, though the scale factor could quite easily be so large as to make it operationally indistinguishable from a k=0 spatially flat universe. (With minor loss of elegance, spatially flat and hyperbolic FLRW cosmologies can also be accommodated.) We demonstrate how this model can be made consistent with standard cosmology, and suggest some possible observational tests.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We sketch a particularly simple and compelling version of D-brane cosmology. | contribution 0.99 | 0.83 | 0.07 | asserted 0.87 |
| s1 | Inspired by the semi-phenomenological Randall--Sundrum models, and their cosmological generalizations, we develop a variant that contains a single (3+1)-dimensional D-brane which is located on the boundary of a single bulk (4+1)-dimensional region. | contribution 0.78 | 0.89 | 0.10 | asserted 0.98 |
| s2 | The D-brane boundary is itself to be interpreted as our visible universe, with ordinary matter (planets, stars, galaxies) being trapped on this D-brane by string theory effects. | interpretation 0.67 | 0.20 | 0.11 | asserted 0.79 |
| s3 | The (4+1)-dimensional bulk is, in its simplest implementation, adS_{4+1}, anti-de Sitter space. | method 0.72 | 0.28 | 0.06 | asserted 0.90 |
| s4 | We demonstrate that a k=+1 closed FLRW universe is the most natural option, though the scale factor could quite easily be so large as to make it operationally indistinguishable from a k=0 spatially flat universe. | result 0.98 | 0.92 | 0.33 | asserted 0.91 |
| s5 | (With minor loss of elegance, spatially flat and hyperbolic FLRW cosmologies can also be accommodated.) We demonstrate how this model can be made consistent with standard cosmology, and suggest some possible observational tests. | contribution 0.51 | 0.88 | 0.22 | asserted 0.71 |
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The paper
Original abstract
We sketch a particularly simple and compelling version of D-brane cosmology. Inspired by the semi-phenomenological Randall--Sundrum models, and their cosmological generalizations, we develop a variant that contains a single (3+1)-dimensional D-brane which is located on the boundary of a single bulk (4+1)-dimensional region. The D-brane boundary is itself to be interpreted as our visible universe, with ordinary matter (planets, stars, galaxies) being trapped on this D-brane by string theory effects. The (4+1)-dimensional bulk is, in its simplest implementation, adS_{4+1}, anti-de Sitter space. We demonstrate that a k=+1 closed FLRW universe is the most natural option, though the scale factor could quite easily be so large as to make it operationally indistinguishable from a k=0 spatially flat universe. (With minor loss of elegance, spatially flat and hyperbolic FLRW cosmologies can also be accommodated.) We demonstrate how this model can be made consistent with standard cosmology, and suggest some possible observational tests.
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References
How the literature uses it
6 arXiv papers cite this in 9 sentences
Papers citing it · 3 sentences without a confident label
Uses its method or tool 2 papers
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The embedding geometry thus gives [ref] [equation]
Bouncing Braneworld with Born-Infeld and Gauss-Bonnet · Introduction · 0.92
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Following the steps in [ref] we introduce a brane at the point $y = R$.
Five-Dimensional Black Hole String Backgrounds and Brane Universe Acceleration · Cosmological Implications · 0.94
Cites it as background 4 papers
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In a large class of these models a Friedman-Robertson-Walker universe arises by the evolution of a three-dimensional brane in an AdS or in an AdS black-hole spacetime [ref] .
Universe Acceleration in Brane World Models · Introduction · 0.93
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There had been earlier attempts to realize cosmology in the realm of AdS/CFT, including a surge of research activities to establish a holographic description of RS braneworld models [ref] .
The dark bubbleography · Holographic Cosmology - a primer · 1.00
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In a large class of these models a Friedman-Robertson-Walker universe arises by the evolution of a three-dimensional brane in an AdS or in an AdS black-hole spacetime [ref] .
Five-Dimensional Black Hole String Backgrounds and Brane Universe Acceleration · Introduction · 0.84
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