Intrinsic problems of the gravitational baryogenesis

E. V. Arbuzova, A. D. Dolgov

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Modification of gravity due to the curvature dependent term in the gravitational baryogenesis scenario is considered. It is shown that this term leads to the fourth order differential equation of motion for the curvature scalar instead of the algebraic one of General Relativity (GR). The fourth order gravitational equations are generically unstable with respect to small perturbations. Non-linear in curvature terms may stabilize the solution but the magnitude of the stabilized curvature scalar would be much larger than that dictated by GR, so the standard cosmology would be strongly distorted.

Original languageEnglish
Pages (from-to)171-175
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume769
DOIs
Publication statusPublished - 10 Jun 2017

Keywords

  • MODIFIED GRAVITY
  • INFLATION
  • ASYMMETRY

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