2018/07/23 by Yermek Aldabergenov, Ryotaro Ishikawa, Sergei V. Ketov +2 · 31 citations
Earth and Planetary Sciences · Physics and Astronomy · #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Geometry #Geophysics and Gravity Measurements #Gravitation #Graviton #Inflation (cosmology) #Inflaton #Massive gravity #Mathematical physics #Multiplet #Physics #Quantum mechanics #Scalar (mathematics) #Supergravity #Supersymmetry #Tensor (intrinsic definition) #Theoretical physics #Vector field #gr-qc #hep-th
paper · pdf · doi:10.1103/physrevd.98.083511
published in Physical review. D/Physical review. D. 98(8) (American Physical Society) · 14 pages, LaTex, 2 figures
arxiv created 2018/07/23 · openalex publication_date 2018/10/08 · arxiv updated 2018/10/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A supergravity extension of the (R+R2) gravity with the additional (Born-Infeld) structure of a massive vector multiplet gives rise to the specific F(R) gravity, whose structure is investigated in detail. The massive vector multiplet has an inflaton (scalaron), goldstino, and massive vector field as its field components. The model describes Starobinsky inflation and allows us to extrapolate the F(R) function beyond the inflationary scale (up to Planck scale). We observe some differences versus the (R+R2) gravity and several breaking patterns of the well-known correspondence between the F(R) gravity and the scalar-tensor gravity.