TL;DR
CosmoLib is a comprehensive toolkit combining a Boltzmann code and simulation tools to forecast cosmological parameter constraints from future observations, optimized for studying inflationary models with sharp features.
Contribution
It introduces the linear-order component of CosmoLib, a new toolkit with an optimized integrator for CMB power spectrum calculations, including dark energy perturbations.
Findings
Stable and high-performance Boltzmann code in Newtonian gauge
Efficient brute-force integration for sharp feature models
Publicly available numerical code and documentation
Abstract
The package CosmoLib is a combination of a cosmological Boltzmann code and a simulation toolkit to forecast the constraints on cosmological parameters from future observations. In this paper we describe the released linear-order part of the package. We discuss the stability and performance of the Boltzmann code. This is written in Newtonian gauge and including dark energy perturbations. In CosmoLib the integrator that computes the CMB angular power spectrum is optimized for a -by- brute-force integration, which is useful for studying inflationary models predicting sharp features in the primordial power spectrum of metric fluctuations. The numerical code and its documentation are available at http://www.cita.utoronto.ca/~zqhuang/CosmoLib.
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