Ultra-light dark matter

@article{Ferreira2021UltralightDM,
  title={Ultra-light dark matter},
  author={Elisa G. M. Ferreira},
  journal={The Astronomy and Astrophysics Review},
  year={2021},
  volume={29},
  pages={1-186}
}
Ultra-light dark matter is a class of dark matter models (DM), where DM is composed by bosons with masses ranging from $$10^{-24}\, \mathrm {eV}< m < \mathrm {eV}$$ 10 - 24 eV < m < eV . These models have been receiving a lot of attention in the past few years given their interesting property of forming a Bose–Einstein condensate (BEC) or a superfluid on galactic scales. BEC and superfluidity are some of the most striking quantum mechanical phenomena that manifest on macroscopic scales, and… 
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