4 papers
Single Graviton Loop Contribution to the Self-Mass of a Massless, Conformally Coupled Scalar on de Sitter Background
D. Glavan, S. P. Miao, T. Prokopec +1
We use a simplified formalism to re-compute the single graviton loop contribution to the self-mass of a massless, conformally coupled scalar on de Sitter background which was origi…
Breaking of scaling symmetry by massless scalar on de Sitter
D. Glavan, S. P. Miao, T. Prokopec +1
We study the response of a classical massless minimally coupled scalar to a static point scalar charge on de Sitter. By considering explicit solutions of the problem we conclude th…
Graviton Propagator in a 2-Parameter Family of de Sitter Breaking Gauges
D. Glavan, S. P. Miao, T. Prokopec +1
We formulate the graviton propagator on de Sitter background in a 2-parameter family of simple gauges which break de Sitter invariance. Explicit results are derived for the first o…
Einstein-Gauss-Bonnet gravity in 4-dimensional space-time
Dražen Glavan, Chunshan Lin
In this Letter we present a general covariant modified theory of gravity in space-time dimensions which propagates only the massless graviton and bypasses the Lovelock's…