Second Order perturbation Theory: A covariant approach involving a barotropic equation of state

Bob Osano

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arXiv · 1504.01495

Second Order perturbation Theory: A covariant approach involving a barotropic equation of state

Bob Osano

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Abstract

We present a covariant and gauge invariant formalism suited to the study of second-order effects associated with higher order tensor perturbations. The analytical method we have developed enables us to characterize pure second-order tensor perturbations about FLRW model having different kinds of equations of state. Our analysis of the radiation case suggests that it may be feasible to examine the CMB polarization arising from higher order perturbations.

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Bob Osano. 2015-04-07. Second Order perturbation Theory: A covariant approach involving a barotropic equation of state. https://arxiv.org/abs/1504.01495

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