Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-06-10
Phys.Rev. D60 (1999) 107503
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages, RevTeX, no figures
Scientific paper
10.1103/PhysRevD.60.107503
We compute the influence action for a system perturbatively coupled to a linear scalar field acting as the environment. Subtleties related to divergences that appear when summing over all the modes are made explicit and clarified. Being closely connected with models used in the literature, we show how to completely reconcile the results obtained in the context of stochastic semiclassical gravity when using mode decomposition with those obtained by other standard functional techniques.
Roura Albert
Verdaguer Enric
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