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Gravitation and Cosmology

, Volume 25, Issue 2, pp 131–137 | Cite as

A Cosmological Solution with Acceleration Caused by an Annihilation Shock Wave

  • A. N. Golubiatnikov
  • D. B. LyuboshitsEmail author
Article

Abstract

A discontinuous spherically symmetric solution of the Einstein equations is found, containing an annihilation shock wave. Before the shock wave, there occurs a parabolic (with zero speed at infinity) compression of dust consisting of particles and antiparticles, which is glued on the wave of complete annihilation of antiparticles with hyperbolic expansion of a gas with an extremely stiff equation of state. Specifically, in contrast to the Friedmann homogeneous expansion. the solution behind the shock wave has a nonzero pressure gradient associated with acceleration of the continuum. Estimates are given for the parameters related to the stage of baryon-antibaryon annihilation at formation of the Universe.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Institute of MechanicsMoscow State UniversityMoscowRussia

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