Quantum gravitationally induced stress tensor during inflation

N. C. Tsamis, R. P. Woodard
1998 Physical Review D, Particles and fields  
We derive non-perturbative relations between the expectation value of the invariant element in a homogeneous and isotropic state and the quantum gravitationally induced pressure and energy density. By exploiting previously obtained bounds for the maximum possible growth of perturbative corrections to a locally de Sitter background we show that the two loop result dominates all higher orders. We also show that the quantum gravitational slowing of inflation becomes non-perturbatively strong
more » ... tively strong earlier than previously expected.
doi:10.1103/physrevd.57.4826 fatcat:e3uj3ppzwnaxnfcnlf53xvkhcm