2018/08/31 by Nemanja Kaloper, James H. C. Scargill
Mathematics · Physics and Astronomy · #Anti-de Sitter space #Black Holes and Theoretical Physics #Brane cosmology #Classical mechanics #Cosmology and Gravitation Theories #Curvature #De Sitter universe #Gauge (firearms) #Geometry #Gravitation #Graviton #Massive gravity #Massless particle #Mathematical physics #Mathematics #Noncommutative and Quantum Gravity Theories #Physics #Quantum mechanics #Symmetry (geometry) #Tension (geology) #Theoretical physics #Universe #astro-ph.CO #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1007/jhep03(2019)132
published as JHEP 03 (2019) 132 · 19 pages LaTeX, one .pdf figure; v2 expanded discussion on possible ghost-freedom of the construction, and other minor changes to agree with published version
openalex publication_date 2019/03/01 · arxiv created 2019/03/26 · arxiv updated 2019/03/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
A bstract We construct de Sitter branes in a flat bulk of massive gravity in 5 D . We find two branches of solutions, reminiscent of the normal and self-accelerating branches in DGP, but with rather different properties. Neither branch has a self-accelerating limit: the background geometry requires having a nonvanishing tension. On the other hand, on both branches there are sub-branches where the leading order contributions of the tension to the curvature cancel. In these cases it turns out that larger tensions curve the background less. Further, both branches support a localized 4 D massless graviton for a special choice of bulk mass terms. This choice may be protected by enhanced gauge symmetry. Finally, we generalize the solutions to the case of bigravity in a flat 5 D bulk.