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Cosmological perturbations in a universe dominated by a coherent scalar field
Phys. Rev. D 32, 501 – Published 15 July, 1985
DOI: https://doi.org/10.1103/PhysRevD.32.501
Abstract
Energy-density perturbations in a universe dominated by coherent oscillations of a scalar field evolve as in a pressureless fluid. The analysis applies in particular to axion models. Axions are thus a candidate for cold dark matter.
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