40 citations · 140 across the 7 of their papers we have counts for
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gr-qc2013★ 33 cited
Frame independent cosmological perturbations
Tomislav Prokopec, Jan Weenink
We compute the third order gauge invariant action for scalar-graviton interactions in the Jordan frame. We demonstrate that the gauge invariant action for scalar and tensor perturb…
gr-qc2012★ 30 cited
Uniqueness of the gauge invariant action for cosmological perturbations
Tomislav Prokopec, Jan Weenink
In second order perturbation theory different definitions are known of gauge invariant perturbations in single field inflationary models. Consequently the corresponding gauge invar…
gr-qc2011★ 7 cited
On decoherence of cosmological perturbations and stochastic inflation
Jan Weenink, Tomislav Prokopec
By making a suitable generalization of the Starobinsky stochastic inflation, we propose a classical phase space formulation of stochastic inflation which may be used for a quantita…