Evolution of second-order cosmological perturbations.

Malik, Karim A. and Wands, David (2004) Evolution of second-order cosmological perturbations. Classical and Quantum Gravity, 21 (11). L65-L71. ISSN 0264-9381

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We present a method for constructing gauge-invariant cosmological perturbations which are gauge-invariant up to second order. As an example, we give the gauge-invariant definition of the second-order curvature perturbation on uniform density hypersurfaces. Using only the energy conservation equation, we show that this curvature perturbation is conserved at second order on large scales for adiabatic perturbations.

Item Type: Journal Article
Journal or Publication Title: Classical and Quantum Gravity
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Departments: Faculty of Science and Technology > Physics
ID Code: 23930
Deposited By: ep_ss_importer
Deposited On: 24 Feb 2009 10:19
Refereed?: Yes
Published?: Published
Last Modified: 11 Feb 2020 07:40
URI: https://eprints.lancs.ac.uk/id/eprint/23930

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