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Mode decomposition and renormalization in semiclassical gravity
Roura, Albert; Verdaguer Oms, Enric, 1950-
Universitat de Barcelona
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.
11-05-2010
Relativitat (Física)
Gravitació
Renormalització (Física)
Espai i temps
Relativity (Physics)
Gravitation
Renormalization (Physics)
Space and time
(c) The American Physical Society, 1999
Artículo
The American Physical Society
         

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Calzetta, Esteban A., 1958-; Roura, Albert; Verdaguer Oms, Enric, 1950-
Calzetta, Esteban A., 1958-; Roura, Albert; Verdaguer Oms, Enric, 1950-