Inflaton Clusters and Inflaton Stars

  title={Inflaton Clusters and Inflaton Stars},
  author={J. Niemeyer and R. Easther},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  • J. Niemeyer, R. Easther
  • Published 2019
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
  • In a broad class of scenarios, inflation is followed by an extended era of matter-dominated expansion during which the inflaton condensate is nonrelativistic on subhorizon scales. During this phase density perturbations grow to the point of nonlinearity and collapse into bound structures. This epoch strongly resembles structure formation with ultra-light axion-like particles. This parallel permits us to adapt results from studies of cosmological structure formation to describe the nonlinear… CONTINUE READING

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