A note on Gauge Theories Coupled to Gravity

Details A note on Gauge Theories Coupled to Gravity A note on Gauge Theories Coupled to Gravity

2006-06-29

arxiv.org/abs/hep-th/0606277v1

JHEP0609:049,2006

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 1 figure, Latex

Scientific paper

10.1088/1126-6708/2006/09/049

We analyze the bound on gauge couplings $e\geq m/m_p$, suggested by Arkani-Hamed et.al. We show this bound can be derived from simple semi-classical considerations and holds in spacetime dimensions greater than or equal to four. Non abelian gauge symmetries seem to satisfy the bound in a trivial manner. We comment on the case of discrete symmetries and close by performing some checks for the bound in higher dimensions in the context of string theory.

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