Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2023/01/020
Keywords
physics of the early universe; cosmological perturbation theory; dark matter theory
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The large-scale perturbations in dark matter generated by the freeze-in mechanism are shown to be only of adiabatic nature, which is not contradictory to the current stringent constraints on isocurvature perturbations.
We show that the large-scale perturbations in the dark matter generated by the freeze-in mechanism are only of adiabatic nature. The freeze-in mechanism is not at odds with the current stringent constraints on isocurvature perturbations.
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