On Infrared Effects in de~Sitter Background

Abstract

We have estimated higher order quantum gravity corrections to de~Sitter spacetime. Our results suggest that, while the classical spacetime metric may be distorted by the graviton self-interactions, the corrections are relatively weaker than previously thought, possibly growing like a power rather than exponentially in time.

Comments: 17, UM-TH-94-11, (1 postscript fig. at end)