Effective cosmological constant induced by stochastic fluctuations of Newton's constant

We consider implications of the microscopic dynamics of spacetime for the evolution of cosmological models. We argue that quantum geometry effects may lead to stochastic fluctuations of the gravitational constant, which is thus considered as a macroscopic effective dynamical quantity. Consistency wi...

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Bibliographic Details
Main Authors: Marco de Cesare, Fedele Lizzi, Mairi Sakellariadou
Format: Article
Language:English
Published: Elsevier 2016-09-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316303562