2009/04/17 by Kazuharu Bamba, Bamba, Kazuharu · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #Pulsars and Gravitational Waves Research #astro-ph.CO #gr-qc #hep-th
paper · pdf · doi:10.48550/arxiv.0904.2655
8 pages, no figure, published in The Casimir Effect and Cosmology, Tomsk State Pedagogical University 2008, p. 142-152
arxiv created 2009/04/17 · openalex publication_date 2009/04/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We review finite-time future singularities in modified gravity. We reconstruct an explicit model of modified gravity realizing a crossing of the phantom divide and show that the Big Rip singularity appears in the modified gravitational theory. It is also demonstrated that the (finite-time) Big Rip singularity in the modified gravity is transformed into the infinite-time singularity in the corresponding scalar field theory obtained through the conformal transformation. Furthermore, we study several models of modified gravity which produce accelerating cosmologies ending at the finite-time future singularities of all four known types.