Aps instability and the topology of the brane-world

@article{McInnes2004ApsIA,
  title={Aps instability and the topology of the brane-world},
  author={Brett McInnes},
  journal={Physics Letters B},
  year={2004},
  volume={593},
  pages={10-16}
}
  • B. McInnes
  • Published 7 January 2004
  • Physics
  • Physics Letters B
Abstract As is well known, classical general relativity does not constrain the topology of the spatial sections of our Universe. However, the brane-world approach to cosmology might be expected to do so, since in general any modification of the topology of the brane must be reflected in some modification of that of the bulk. Assuming the truth of the Adams–Polchinski–Silverstein conjecture on the instability of non-supersymmetric AdS orbifolds, evidence for which has recently been accumulating… 
The Spectral Action and Cosmic Topology
The spectral action functional, considered as a model of gravity coupled to matter, provides, in its non-perturbative form, a slow-roll potential for inflation, whose form and corresponding slow-roll
Inflation, large branes, and the shape of space
Abstract Linde has recently argued that compact flat or negatively curved spatial sections should, in many circumstances, be considered typical in Inflationary cosmologies. We suggest that the “large
The most probable size of the Universe
Abstract It has recently been suggested, by Firouzjahi, Sarangi, and Tye, that string-motivated modifications of the Hartle–Hawking wave function predict that our Universe came into existence from
Observational constraints on modified gravity models and the Poincaré dodecahedral topology
We study observational constraints on models that account for the accelerated expansion of the universe via infrared modifications to general relativity, namely, the Dvali-Gabadadze-Porrati
Spherical Universe topology and the Casimir effect
Recent interest in the possible non-trivial topology of the Universe, and the resulting analysis of the Laplacian eigenproblem, has prompted a reprise of calculations done by ourselves some time ago.
Supersymmetric Kaluza-Klein reductions of AdS backgrounds
This paper contains a classification of smooth Kaluza--Klein reductions (by one-parameter subgroups) of the maximally supersymmetric anti de Sitter backgrounds of supergravity theories. We present a
Dirac Spectra, Summation Formulae, and the Spectral Action
Noncommutative geometry is a source of particle physics models with matter Lagrangians coupled to gravity. One may associate to any noncommutative space (A, H, D) its spectral action, which is
Waves on accelerating dodecahedral universes
We investigate the wave propagation on a compact 3-manifold of constant positive curvature with a non trivial topology, the Poincare dodecahedral space, when the scale factor is exponentially
p-form spectra and Casimir energies on spherical tessellations
Casimir energies on spacetimes having the fundamental domains of semi-regular spherical tessellations of the 3-sphere as their spatial sections are computed for scalar and Maxwell fields. The
Spherical Casimir energies and Dedekind sums
Casimir energies on spacetimes having general lens spaces as their spatial sections are shown to be given in terms of generalized Dedekind sums related to Zagier's. These are evaluated explicitly in

References

SHOWING 1-10 OF 59 REFERENCES
Orbifold physics and de Sitter spacetime
Abstract It is generally believed the way to resolve the black hole information paradox in string theory is to embed the black hole in anti-de Sitter spacetime— without of course claiming that
Towards inflation in string theory
We investigate the embedding of brane inflation into stable compactifications of string theory. At first sight a warped compactification geometry seems to produce a naturally flat inflaton potential,
Localized Tachyons and the Quantum McKay Correspondence
The condensation of closed string tachyons localized at the fixed point of a d/Γ orbifold can be studied in the framework of renormalization group flow in a gauged linear sigma model. The evolution
Braneworld dynamics with the BRANECODE
We give a full nonlinear numerical treatment of time-dependent 5D braneworld geometry, which is determined self-consistently by potentials for the scalar field in the bulk and at two orbifold branes,
Closer towards inflation in string theory
In brane inflation, the relative brane position in the bulk of a brane world is the inflaton. For branes moving in a compact manifold, the approximate translational (or shift) symmetry is necessary
Can inflating braneworlds be stabilized
We investigate scalar perturbations from inflation in braneworld cosmologies with extra dimensions. For this we calculate scalar metric fluctuations around five dimensional warped geometry with four
Aspects of Type IIB Theory on ALE Spaces
D–brane technology and strong/weak coupling duality supplement traditional orbifold techniques by making certain background geometries more accessible. In this spirit, we consider some of the
Spacetime Quotients, Penrose Limits and Conformal Symmetry Restoration
In this paper we study the Penrose limit of AdS5 orbifolds. The orbifold can be either in the pure spatial directions or space and time directions. For the AdS5/Γ × S5 spatial orbifold we observe
Topology and the cosmic microwave background
Abstract Nature abhors an infinity. The limits of general relativity are often signaled by infinities: infinite curvature as in the center of a black hole, the infinite energy of the singular big
Moduli potentials in string compactifications with fluxes: Mapping the discretuum
We find de Sitter and flat space solutions with all moduli stabilized in four dimensional supergravity theories derived from the heterotic and type II string theories, and explain how all the
...
1
2
3
4
5
...