Conformal universe as false vacuum decay

M. Libanov and V. Rubakov
Phys. Rev. D 91, 103515 – Published 18 May 2015

Abstract

We point out that the (pseudo)conformal universe scenario may be realized as the decay of a conformally invariant, metastable vacuum, which proceeds via spontaneous nucleation and subsequent growth of a bubble of a putative new phase. We study perturbations about the bubble and show that their leading late-time properties coincide with those inherent in the original models with homogeneously rolling backgrounds. In particular, the perturbations of a spectator dimension-zero field have a flat power spectrum.

  • Figure
  • Received 24 March 2015

DOI:https://doi.org/10.1103/PhysRevD.91.103515

© 2015 American Physical Society

Authors & Affiliations

M. Libanov1,2 and V. Rubakov1,3

  • 1Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect, 7a, 117312 Moscow, Russia
  • 2Moscow Institute of Physics and Technology, Institutskii per., 9, 141700 Dolgoprudny, Moscow Region, Russia
  • 3Department of Particle Physics and Cosmology, Physics Faculty, Moscow State University, Vorobjevy Gory, 119991 Moscow, Russia

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Issue

Vol. 91, Iss. 10 — 15 May 2015

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