39 citations · 55 across the 5 of their papers we have counts for
5 papers
gevolution 2.0: GPU-accelerated relativistic N-body simulations for cosmology
Julian Adamek, Øyvind Christiansen
High-performance computing is increasingly dominated by hardware acceleration using Graphics Processing Units (GPUs). To take advantage of this long-term trend, we implement a majo…
Environmental cosmic acceleration from a phase transition in the dark sector
Øyvind Christiansen, Farbod Hassani, David F. Mota
A new degravitation mechanism within the framework of scalar tensor gravity is postulated and included by prescription. The mechanism eliminates all constant contributions from the…
Gravitational waves from dark domain walls
Øyvind Christiansen, Julian Adamek, Farbod Hassani +1
For most of cosmic history, the evolution of our Universe has been governed by the physics of a 'dark sector', consisting of dark matter and dark energy, whose properties are only…
asevolution: a relativistic N-body implementation of the (a)symmetron
Øyvind Christiansen, Farbod Hassani, Mona Jalilvand +1
We present asevolution, a cosmological N-body code developed based on gevolution, which consistently solves for the (a)symmetron scalar field and metric potentials within the weak-…
Gravitational and electromagnetic radiation from binary black holes with electric and magnetic charges: Elliptical orbits on a cone
Lang Liu, Øyvind Christiansen, Wen-Hong Ruan +3
Extending the electromagnetic and gravitational radiations from binary black holes with electric and magnetic charges in circular orbits in Phys. Rev. D {\bf 102}, 103520 (2020), w…