First-order adiabatic perturbations of a perfect fluid about a general FLRW background using the 1 3 covariant and gauge-invariant formalism - General Relativity and Quantum CosmologyReport as inadecuate




First-order adiabatic perturbations of a perfect fluid about a general FLRW background using the 1 3 covariant and gauge-invariant formalism - General Relativity and Quantum Cosmology - Download this document for free, or read online. Document in PDF available to download.

Abstract: An analysis of adiabatic perturbations of a perfect fluid is performed tofirst-order about a general FLRW background using the 1+3 covariant andgauge-invariant formalism. The analog of the Mukhanov-Sasaki variable and thecanonical variables needed to quantise respectively the scalar and tensorperturbations in a general FLRW background space-time are identified. Thedynamics of the vector perturbations is also discussed.



Author: Sylvain D. Brechet, Michael P. Hobson, Anthony N. Lasenby

Source: https://arxiv.org/



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