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Large Logarithms from Quantum Gravitational Corrections to a Massless, Minimally Coupled Scalar on de Sitter
D. Glavan, S. P. Miao, T. Prokopec +1
We consider single graviton loop corrections to the effective field equation of a massless, minimally coupled scalar on de Sitter background in the simplest gauge. We find a large…
Summing Inflationary Logarithms in Nonlinear Sigma Models
S. P. Miao, N. C. Tsamis, R. P. Woodard
We consider two nonlinear sigma models on de Sitter background which involve the same derivative interactions as quantum gravity but without the gauge issue. The first model contai…
Gauge Independent Quantum Gravitational Corrections to Maxwell's Equation
S. Katuwal, R. P. Woodard
We consider quantum gravitational corrections to Maxwell's equations on flat space background. Although the vacuum polarization is highly gauge dependent, we explicitly show that t…
How Inflationary Gravitons Affect Gravitational Radiation
L. Tan, N. C. Tsamis, R. P. Woodard
We include the single graviton loop contribution to the linearized Einstein equation. Explicit results are obtained for one loop corrections to the propagation of gravitational rad…
Graviton Self-Energy from Gravitons in Cosmology
L. Tan, N. C. Tsamis, R. P. Woodard
Although matter contributions to the graviton self-energy $-i[\mbox{}^{μν} Σ^{ρσ}](x;x')$ must be separately conserved on and , graviton contributions obey the weaker…
Inflaton Effective Potential from Photons for General
S. Katuwal, S. P. Miao, R. P. Woodard
We accurately approximate the contribution that photons make to the effective potential of a charged inflaton for inflationary geometries with an arbitrary first slow roll paramete…