منابع مشابه
Constructing Gravitational Dimensions
It would be extremely useful to know whether a particular low energy effective theory might have come from a compactification of a higher dimensional space. Here, this problem is approached from the ground up by considering theories with multiple interacting massive gravitons. It is actually very difficult to construct discrete gravitational dimensions which have a local continuum limit. In fac...
متن کامل(Re)Constructing Dimensions
Compactifying a higher-dimensional theory defined in R on an n-dimensional manifold M results in a spectrum of four-dimensional (bosonic) fields with masses mi = λi, where −λi are the eigenvalues of the Laplacian on the compact manifold. The question we address in this paper is the inverse: given the masses of the Kaluza-Klein fields in four dimensions, what can we say about the size and shape ...
متن کامل(De)constructing dimensions.
We construct renormalizable, asymptotically free, four-dimensional gauge theories that dynamically generate a fifth dimension.
متن کاملGravitational scaling dimensions
A model for quantized gravitation based on simplicial lattice discretization is studied in detail using a comprehensive finite size scaling analysis combined with renormalization group methods. The results are consistent with a value for the universal critical exponent for gravitation, n51/3, and suggest a simple relationship between Newton’s constant, the gravitational correlation length and t...
متن کاملGravitational instability in higher dimensions
We explore a classical instability of spacetimes of dimension D > 4. Firstly, we consider static solutions: generalised black holes and brane world metrics. The dangerous mode is a tensor mode on an Einstein base manifold of dimension D−2. A criterion for instability is found for the generalised Schwarzschild, AdSSchwarzschild and topological black hole spacetimes in terms of the Lichnerowicz s...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2003
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.68.024029