Numerical calculation of second order perturbations
نویسندگان
چکیده
منابع مشابه
Evolution of second-order cosmological perturbations
We present a method for constructing gauge-invariant cosmological perturbations which are gaugeinvariant 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 adiabati...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2009
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2009/09/019