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arXiv · 1511.02877

Strong-coupling scales and the graph structure of multi-gravity theories

James H. C. Scargill·Johannes Noller
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Abstract

In this paper we consider how the strong-coupling scale, or perturbative cutoff, in a multi-gravity theory depends upon the presence and structure of interactions between the different fields. This can elegantly be rephrased in terms of the size and structure of the `theory graph' which depicts the interactions in a given theory. We show that the question can be answered in terms of the properties of various graph-theoretical matrices, affording an efficient way to estimate and place bounds on the strong-coupling scale of a given theory. In light of this we also consider the problem of relating a given theory graph to a discretised higher dimensional theory, a la dimensional deconstruction.

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James H. C. Scargill, Johannes Noller. 2016-01-08. Strong-coupling scales and the graph structure of multi-gravity theories. https://doi.org/10.1007/jhep01(2016)029

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