• DOI:10.1142/S0218271815440010
• Corpus ID: 119210816

Bose-Einstein condensation as an alternative to inflation

@article{Das2015BoseEinsteinCA,
  title={Bose-Einstein condensation as an alternative to inflation},
  author={Saurya Das},
  journal={arXiv: General Relativity and Quantum Cosmology},
  year={2015}
}

• Saurya Das
• Published 9 September 2015
• Physics
• arXiv: General Relativity and Quantum Cosmology

It was recently shown that gravitons with a very small mass should have formed a Bose-Einstein condensate in the very early Universe, whose density and quantum potential can account for the dark matter and dark energy in the Universe respectively. Here we show that the condensation can also naturally explain the observed large scale homogeneity and isotropy of the Universe. Furthermore gravitons continue to fall into their ground state within the condensate at every epoch, accounting for the observed flatness of space at cosmological distances scales. Finally, we argue that the density perturbations due to quantum fluctuations within the condensate give rise to a scale invariant spectrum. This therefore provides a viable alternative to inflation, which is not associated with the well-known problems associated with the latter.