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An implementation of the soft-sphere discrete element method in a high-performance parallel gravity tree-code
Bulk solids Solar system DEM Hopper SSDEM
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2015/12/25
We present our implementation of the soft-sphere discrete element method (SSDEM) in the parallel gravitational N-body code pkdgrav, a well-tested simulation package that has been used to provide many ...
Modified gravity approach based on a preferred time foliation
Modified gravity approach based preferred foliation
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2011/10/14
We propose, in a heuristic way, a relativistic modified gravity model as an alternative to particle dark matter at galactic scales. The model is based on a postulated preferred time foliation describe...
Quantum gravity stability of isotropy in homogeneous cosmology
quantum stability cosmological isotropy cosmological
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2011/10/17
It has been shown that anisotropy of homogeneous spacetime described by the general Kasner metric can be damped by quantum fluctuations coming from perturbative quantum gravity in one-loop approximati...
Testing model independent modified gravity with future large scale surveys
Testing model independent modified gravity future large scale surveys
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2011/9/27
Model-independent parametrisations of modified gravity have attracted a lot of attention over the past few years and numerous combinations of experiments and observables have been suggested to constra...
Massive 3D Gravity Big-Bounce
Massive 3D Gravity scalar matter
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2010/3/19
The properties of an extension of the New Massive 3D Gravity by scalar matter with Higgs-like self-interaction are investigated. Its perturbative unitarity consistency is verified for a family of cosm...