Skip to Main content Skip to Navigation
Journal articles

Cosmology in one dimension: Vlasov dynamics

Abstract : Numerical simulations of self-gravitating systems are generally based on N-body codes, which solve the equations of motion of a large number of interacting particles. This approach suffers from poor statistical sampling in regions of low density. In contrast, Vlasov codes, by meshing the entire phase space, can reach higher accuracy irrespective of the density. Here, we perform one-dimensional Vlasov simulations of a long-standing cosmological problem, namely, the fractal properties of an expanding Einstein–de Sitter universe in Newtonian gravity. The N-body results are confirmed for high-density regions and extended to regions of low matter density, where the N-body approach usually fails.
Document type :
Journal articles
Complete list of metadata

Cited literature [26 references]  Display  Hide  Download
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Wednesday, May 25, 2016 - 2:22:41 PM
Last modification on : Wednesday, August 3, 2022 - 4:03:33 AM
Long-term archiving on: : Friday, August 26, 2016 - 10:59:51 AM


Publisher files allowed on an open archive




Giovanni Manfredi, Jean-Louis Rouet, Bruce Miller, Yui Shiozawa. Cosmology in one dimension: Vlasov dynamics. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2016, 93 (042211), 9 p. ⟨10.1103/PhysRevE.93.042211⟩. ⟨insu-01321333⟩



Record views


Files downloads