Correlation between UV and IR cutoffs in quantum field theory and large extra dimensions

TL;DR

This paper explores the relationship between UV and IR cutoffs in quantum field theory with large extra dimensions, deriving limits on extra dimension scales and discussing implications for the cosmological constant problem.

Contribution

It generalizes the UV-IR cutoff relationship to theories with large extra dimensions and provides bounds on the size of these dimensions based on observable corrections.

Findings

Stringent limits on the scale of extra dimensions.

Implications for the cosmological constant problem.

Refined estimates of quantum field theory corrections.

Abstract

A recently conjectured relashionship between UV and IR cutoffs in an effective field theory without quantum gravity is generalized in the presence of large extra dimensions. Estimates for the corrections to the usual calculation of observables within quantum field theory are used to put very stringent limits, in some cases, on the characteristic scale of the additional compactified dimensions. Implications for the cosmological constant problem are also discussed.