On the dark energy clustering properties

  title={On the dark energy clustering properties},
  author={F. Perrotta and Carlo Baccigalupi},
  journal={Physical Review D},
We highlight a viable mechanism leading to the formation of dark energy structures on sub-horizon cosmological scales, starting from linear perturbations in scalar-tensor cosmologies. We show that the coupling of the dark energy scalar field, or Quintessence, to the Ricci scalar induces a "dragging" of its density perturbations through the general relativistic gravitational potentials. We discuss, in particular, how this process forces dark energy to behave as a pressureless component if the… 

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