CLASS_EDE: CLASS for Early Dark Energy

Updated version based on class v3.2.0. Original version of CLASS_EDE is available HERE

A modified version of the publicly available Einstein-Boltzmann code CLASS to implement Early Dark Energy (EDE). CLASS_EDE solves for the evolution of the scalar field perturbations directly using the perturbed Klein-Gordon equation and implements adiabatic initial conditions for the scalar field fluctuations. The code allows one to specify the EDE model parameters in terms of the particle physics parameters f and m or effective EDE parameters f_EDE and z_c.

See Hill et al. where CLASS_EDE is implemented to test the validity of the EDE model.

CLASS edited by

• J. Colin Hill; jch2200 at columbia.edu
• Evan McDonough; evan_mcdonough at brown.edu
• Michael W. Toomey; michael_toomey at brown.edu

Installation

After cloning or downloading the repository, compile CLASS_EDE with make

$ make class