528 citations · 7.5k across the 142 of their papers we have counts for
5 papers · 1 filter
Excitation of Photons by Inflationary Gravitons
C. L. Wang, R. P. Woodard
We use a recent result for the graviton contribution to the one loop vacuum polarization to solve the effective field equations for dynamical photons on de Sitter background. Our r…
Perturbative Quantum Gravity Comes of Age
R. P. Woodard
I argue that cosmological data from the epoch of primordial inflation is catalyzing the maturation of quantum gravity from speculation into a hard science. I explain why quantum gr…
Field equations and cosmology for a class of nonlocal metric models of MOND
Cedric Deffayet, Gilles Esposito-Farese, Richard P. Woodard
We consider a class of nonlocal, pure-metric modified gravity models which were developed to reproduce the Tully-Fisher relation without dark matter and without changing the amount…
Nonlocal Metric Realizations of MOND
R. P. Woodard
I discuss relativistic extensions of MOND in which the metric couples normally to matter. I argue that MOND might be a residual effect from the vacuum polarization of infrared grav…
Nonlocal Models of Cosmic Acceleration
R. P. Woodard
I review a class of nonlocally modified gravity models which were proposed to explain the current phase of cosmic acceleration without dark energy. Among the topics considered are…