A new gravitational N-body simulation algorithm for investigation of cosmological chaotic advection

Recently alternative approaches in cosmology seeks to explain the nature of dark matter as a direct result of the non-linear spacetime curvature due to different types of deformation potentials. In this context, a key test for this hypothesis is to examine the effects of deformation on the evolution...

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Bibliographic Details
Published in:arXiv.org 2012-09
Main Authors: Stalder, Diego H, Rosa, Reinaldo R, José da Silve Junior, Clua, Esteban, Ruiz, Renata, Campos Velho, Haroldo F, Ramos, Fernando, Amarísio da Silva Araújo, Vitor Conrado F Gomes
Format: Article
Language:English
Subjects:
Advection
Algorithms
Computer architecture
Computer simulation
Cosmology
Curvature
Dark matter
Deformation effects
Deformation mechanisms
Dynamical systems
Galactic clusters
Galaxies
Graphics processing units
Gravitation
Gravitational collapse
Turbulence
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Summary:Recently alternative approaches in cosmology seeks to explain the nature of dark matter as a direct result of the non-linear spacetime curvature due to different types of deformation potentials. In this context, a key test for this hypothesis is to examine the effects of deformation on the evolution of large scales structures. An important requirement for the fine analysis of this pure gravitational signature (without dark matter elements) is to characterize the position of a galaxy during its trajectory to the gravitational collapse of super clusters at low redshifts. In this context, each element in an gravitational N-body simulation behaves as a tracer of collapse governed by the process known as chaotic advection (or lagrangian turbulence). In order to develop a detailed study of this new approach we develop the COsmic LAgrangian TUrbulence Simulator (COLATUS) to perform gravitational N-body simulations based on Compute Unified Device Architecture (CUDA) for graphics processing units (GPUs). In this paper we report the first robust results obtained from COLATUS.
ISSN:2331-8422
DOI:10.48550/arxiv.1208.3444