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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2015 Volume 102, Issue 8, Pages 630–640 (Mi jetpl4773)

This article is cited in 7 papers

SCIENTIFIC SUMMARIES

Towards conformal cosmology

M. Libanova, V. Rubakovab, G. Rubtsova

a Institute for Nuclear Research of the RAS, 117312 Moscow, Russia
b Department of Particle Physics and Cosmology, Physics Faculty, Lomonosov MSU, 119991 Moscow, Russia

Abstract: Approximate de Sitter symmetry of inflating Universe is responsible for the approximate flatness of the power spectrum of scalar perturbations. However, this is not the only option. Another symmetry which can explain nearly scale-invariant power spectrum is conformal invariance. We give a short review of models based on conformal symmetry which lead to the scale-invariant spectrum of the scalar perturbations. We discuss also potentially observable features of these models.

Received: 08.09.2015

Language: English

DOI: 10.7868/S0370274X15200163


 English version:
Journal of Experimental and Theoretical Physics Letters, 2015, 102:8, 561–570

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