A User-Friendly Dark Energy Model Generator

TL;DR

This paper introduces a user-friendly software tool with a graphical interface that enables researchers to simulate and analyze a broad range of dark energy models involving multiple scalar fields, facilitating easier exploration of their cosmological implications.

Contribution

The paper presents a novel software with GUI for calculating dark energy model phenomenology, supporting model selection, initial conditions, and Monte Carlo parameter scans.

Findings

Supports multiple scalar field models

Calculates energy density, equation of state, and perturbation growth

Provides outputs in various parametrizations

Abstract

We provide software with a graphical user interface to calculate the phenomenology of a wide class of dark energy models featuring multiple scalar fields. The user chooses a subclass of models and, if desired, initial conditions, or else a range of initial parameters for Monte Carlo. The code calculates the energy density of components in the universe, the equation of state of dark energy, and the linear growth of density perturbations, all as a function of redshift and scale factor. The output also includes an approximate conversion into the average equation of state, as well as the common $(w_0, w_a)$ parametrization. The code is available here: http://github.com/kahinton/Dark-Energy-UI-and-MC