200 citations · 2.3k across the 47 of their papers we have counts for
47 papers
Quantum corrections for spinning particles in de Sitter
Markus B. Fröb, Enric Verdaguer
We compute the one-loop quantum corrections to the gravitational potentials of a spinning point particle in a de Sitter background, due to the vacuum polarisation induced by confor…
Quantum corrections to the gravitational potentials of a point source due to conformal fields in de Sitter
Markus B. Fröb, Enric Verdaguer
We derive the leading quantum corrections to the gravitational potentials in a de Sitter background, due to the vacuum polarization from loops of conformal fields. Our results are…
Riemann correlator in de Sitter including loop corrections from conformal fields
Markus B. Fröb, Albert Roura, Enric Verdaguer
The Riemann correlator with appropriately raised indices characterizes in a gauge-invariant way the quantum metric fluctuations around de Sitter spacetime including loop correction…
Nonperturbative semiclassical stability of de Sitter spacetime for small metric deviations
Markus B. Fröb, Demetrios B. Papadopoulos, Albert Roura +1
We consider the linearized semiclassical Einstein equations for small deviations around de Sitter spacetime including the vacuum polarization effects of conformal fields. Employing…
One-loop gravitational wave spectrum in de Sitter spacetime
Markus B. Fröb, Albert Roura, Enric Verdaguer
The two-point function for tensor metric perturbations around de Sitter spacetime including one-loop corrections from massless conformally coupled scalar fields is calculated exact…
Graviton production in the scaling of a long-cosmic-string network
Kostas Kleidis, Apostolos Kuiroukidis, Demetrios B. Papadopoulos +1
In a previous paper [1] we considered the possibility that (within the early-radiation epoch) there has been (also) a short period of a significant presence of cosmic strings. Duri…