English

SCALAR: an AMR code to simulate axion-like dark matter models

Computational Physics 2020-09-23 v2 Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

Abstract

We present a new code, SCALAR, based on the high-resolution hydrodynamics and N-body code RAMSES, to solve the Schr\"odinger equation on adaptive refined meshes. The code is intended to be used to simulate axion or fuzzy dark matter models where the evolution of the dark matter component is determined by a coupled Schr\"odinger-Poisson equation, but it can also be used as a standalone solver for both linear and non-linear Schr\"odinger equations with any given external potential. This paper describes the numerical implementation of our solver and presents tests to demonstrate how accurately it operates.

Keywords

Cite

@article{arxiv.1906.12160,
  title  = {SCALAR: an AMR code to simulate axion-like dark matter models},
  author = {Mattia Mina and David F. Mota and Hans A. Winther},
  journal= {arXiv preprint arXiv:1906.12160},
  year   = {2020}
}

Comments

17 pages, 11 figures

R2 v1 2026-06-23T10:06:41.628Z