On the Ultraviolet Behaviour of Newton's constant
arXiv:hep-th/0401071 · doi:10.1088/0264-9381/21/22/002
Abstract
We clarify a point concerning the ultraviolet behaviour of the Quantum Field Theory of gravity, under the assumption of the existence of an ultraviolet Fixed Point. We explain why Newton's constant should to scale like the inverse of the square of the cutoff, even though it is technically inessential. As a consequence of this behaviour, the existence of an UV Fixed Point would seem to imply that gravity has a built-in UV cutoff when described in Planck units, but not necessarily in other units.
arXiv comment8 pages; CQG class; minor changes and rearrangements
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