Evolution of second-order cosmological perturbations

K. Malik, David Wands

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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
Original languageEnglish
Pages (from-to)L65-L71
JournalClassical and Quantum Gravity
Issue number11
Publication statusPublished - 7 Jan 2004


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