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preprint
First-order adiabatic perturbations of a perfect fluid about a general FLRW background using the 1+3 covariant and gauge-invariant formalism
2009
An analysis of adiabatic perturbations of a perfect fluid is performed to first-order about a general FLRW background using the 1+3 covariant and gauge-invariant formalism. The analog of the Mukhanov-Sasaki variable and the canonical variables needed to quantise respectively the scalar and tensor perturbations in a general FLRW background space-time are identified. The dynamics of the vector perturbations is also discussed.
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Name
arxiv.org-pdf-0909.5384v1.pdf
Type
Preprint
Access type
openaccess
Size
201.06 KB
Format
Adobe PDF
Checksum (MD5)
c57b05da5f7c1219f9ef21d303334f15