Preprint Concept Paper Version 1 Preserved in Portico This version is not peer-reviewed

Dark Energy and Inflation from Gravitational Waves

Version 1 : Received: 2 July 2017 / Approved: 12 July 2017 / Online: 12 July 2017 (10:14:34 CEST)
Version 2 : Received: 16 August 2017 / Approved: 16 August 2017 / Online: 16 August 2017 (18:46:56 CEST)

A peer-reviewed article of this Preprint also exists.

Marochnik, L. Dark Energy and Inflation from Gravitational Waves. Universe 2017, 3, 72. Marochnik, L. Dark Energy and Inflation from Gravitational Waves. Universe 2017, 3, 72.


In this three-part paper, we show that gravitational waves (classical and quantum) produce the accelerated de Sitter expansion at the start and by the end of the cosmological evolution of the Universe. In these periods of time, the Universe contains no matter fields but contains classical and quantum metric fluctuations, i.e. it is filled with classical gravitational waves and gravitons. In such gravitational wave and graviton dominated eras of evolution of the Universe, the de Sitter state is the exact solution to the self-consistent equations for gravitational waves and gravitons and background geometry for the empty (with no matter fields) space-time with FLRW metric. In both classical and quantum cases, this solution is of the instanton origin since it is obtained by Wick rotation with the subsequent analytic continuation to real time. The cosmological acceleration from gravitational waves and gravitons provides a transparent physical explanation to the coincidence and threshold paradoxes of dark energy avoiding recourse to the anthropic principle. The cosmological acceleration from gravitons/gravitational waves at the start of the Universe evolution produces inflation which is consistent with the observational data on CMB anisotropy.


gravitational waves; cosmology; dark energy; inflation


Physical Sciences, Particle and Field Physics

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