Einstein-Langevin Equations from Running Coupling Constants
Fernando C. Lombardo, Francisco D. Mazzitelli
Abstract
The Einstein-Langevin equations take into account the backreaction of quantum matter fields on the background geometry. We present a derivation of these equations to lowest order in a covariant expansion in powers of the curvature. For massless fields, the equations are completely determined by the running coupling constants of the theory.
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