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arXiv · astro-ph/9912497

Correlated mixtures of adiabatic and isocurvature cosmological perturbations

David Langlois·Alain Riazuelo
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Abstract

We examine the consequences of the existence of correlated mixtures of adiabatic and isocurvature perturbations on the CMB and large scale structure. In particular, we consider the four types of ``elementary'' totally correlated hybrid initial conditions, where only one of the four matter species (photons, baryons, neutrinos, CDM) deviates from adiabaticity. We then study the height and position of the acoustic peaks with respect to the large angular scale plateau as a function of the isocurvature to adiabatic ratio.

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David Langlois, Alain Riazuelo. 1999-12-23. Correlated mixtures of adiabatic and isocurvature cosmological perturbations. https://doi.org/10.1103/physrevd.62.043504

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