Classical Einstein-Langevin Equation and Proposed Applications

Abstract

We propose to formulate a theory for Classical Stochastic Gravity for certain applications in Astrophysics and Cosmology.This involves the Langevin approach in curved spacetime, which is introduced here, in the form of a classical Einstein-Langevin equation.The domain of applications of such an approach and possible outcomes of this formulation which are quite different than its semiclassical counterpart (which is an active area of research), are discussed.This field of study can be seen to emerge out of well established ideas and results in Brownian motion theory as well as the Stochastic Semiclassical Gravity and related issues in Thermodynamics. A brief calculation, to demonstrate the contribution of stochasticty and induce fluctuations to the background spacetime via heuristic solution of the Einstein Langevin equation is given .The applicability of the proposed theme can have a wider expanse than is mentioned in this article.

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• Observation of Gravitational Waves from a Binary Black Hole Merger
• Cosmological perturbations from stochastic gravity
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Cited by in corpus (6)

• Correspondences of matter fluctuations in semiclassical and classical gravity for cosmological spacetime
• Correspondences of matter fluctuations in semiclassical and classical gravity for cosmological spacetime-II
• Stochastic metric perturbations (radial) in gravitationally collapsing spherically symmetric relativistic star
• Non-equilibrium attractor for non-linear stochastic dynamics
• Formalism for stochastic perturbations and analysis in relativistic stars
• Correspondences between scalar field and fluid fluctuations in curved spacetime