gevolution: General Relativity Cosmological N-body code for evolution of large scale structures

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Ada Coda
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gevolution: General Relativity Cosmological N-body code for evolution of large scale structures

Post by Ada Coda » Tue Aug 30, 2016 1:28 pm

gevolution: General Relativity Cosmological N-body code for evolution of large scale structures

Abstract: The N-body code gevolution complies with general relativity principles at every step; it calculates all six metric degrees of freedom in Poisson gauge. N-body particles are evolved by solving the geodesic equation written in terms of a canonical momentum to remain valid for relativistic particles. gevolution can be extended to include different kinds of dark energy or modified gravity models, going beyond the usually adopted quasi-static approximation. A weak field expansion is the central element of gevolution; this permits the code to treat settings in which no strong gravitational fields appear, including arbitrary scenarios with relativistic sources as long as gravitational fields are not very strong. The framework is well suited for cosmology, but may also be useful for astrophysical applications with moderate gravitational fields where a Newtonian treatment is insufficient.

Credit: Adamek, Julian; Daverio, David; Durrer, Ruth; Kunz, Martin

Site: https://github.com/gevolution-code
http://adsabs.harvard.edu/abs/2016JCAP...07..053A

Bibcode: 2016ascl.soft08014A

Preferred citation method: http://adsabs.harvard.edu/abs/2016NatPh..12..346A

ID: ascl:1608.014
Last edited by Ada Coda on Sun Jul 29, 2018 4:50 pm, edited 1 time in total.
Reason: Updated code entry.

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