74 citations · 579 across the 34 of their papers we have counts for
4 papers · 1 filter
Propagators for gauge-invariant observables in cosmology
Markus B. Fröb, William C. C. Lima
We make a proposal for gauge-invariant observables in perturbative quantum gravity in cosmological spacetimes, building on the recent work of Brunetti et al. [JHEP 08 (2016) 032].…
Gauge-invariant quantum gravitational corrections to correlation functions
Markus B. Fröb
A recent proposal for gauge-invariant observables in inflation [R. Brunetti et al., JHEP 1608 (2016) 032] is examined. We give a generalisation of their construction to general bac…
Green's functions and Hadamard parametrices for vector and tensor fields in general linear covariant gauges
Markus B. Fröb, Mojtaba Taslimi Tehrani
We determine the retarded and advanced Green's functions and Hadamard parametrices in curved spacetimes for linearized massive and massless gauge bosons and linearized Einstein gra…
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…