PyUltraLight: A Pseudo-Spectral Solver for Ultralight Dark Matter Dynamics. PyUltraLight simulates the dynamics of ultralight dark matter in a non-expanding background. PyUltraLight can describe the evolution of several interacting ultralight dark matter halos or one or more halos orbiting a central, fixed Newtonian potential, the latter scenario corresponding to dwarf galaxies orbiting a massive central galaxy. We verify PyUltraLight by showing that it reproduces qualitative dynamical features of previously published simulations and demonstrate that it has excellent energy-conservation properties. PyUltraLight is implemented in a Python-based Jupyter notebook, solving the Schrodinger-Poisson equation governing ultralight scalar field dark matter dynamics in the non-relativistic regime using a symmetrised split-step pseudospectral algorithm. The notebook interface makes it simple to specify simulation parameters and visualise the resulting output but performance-critical routines are managed via calls to computationally efficient compiled libraries. PyUltraLight runs on standard desktop hardware with support for shared memory mutlithreading and is available on GitHub.
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References in zbMATH (referenced in 4 articles , 1 standard article )
Showing results 1 to 4 of 4.
- Hui, Lam; Joyce, Austin; Landry, Michael J.; Li, Xinyu: Vortices and waves in light dark matter (2021)
- Salehian, Borna; Zhang, Hong-Yi; Amin, Mustafa A.; Kaiser, David I.; Namjoo, Mohammad Hossein: Beyond Schrödinger-Poisson: nonrelativistic effective field theory for scalar dark matter (2021)
- Paredes, Angel; Olivieri, David N.; Michinel, Humberto: From optics to dark matter: a review on nonlinear Schrödinger-Poisson systems (2020)
- Faber Edwards, Emily Kendall, Shaun Hotchkiss, Richard Easther: PyUltraLight: A Pseudo-Spectral Solver for Ultralight Dark Matter Dynamics (2018) arXiv