Version 0.2 released

Posted by – November 30, 2011

A new version of Pyflation has been released! Get it from the Downloads page or right here.

Version 0.2.0 adds many new features including multi-field evolution of first order perturbations. Source term generation and therefore second order evolution are still only possible for single field models for now. Each model instance now has a nfields variable which is passed to the potential function. New two field and n-field potentials have been added to the cmpotentials module.

Another new feature is the analysis package which encapsulates functions to calculate power spectra of adiabatic and isocurvature perturbations and calculate the spectral indices for these quantities. This package features extensive unit test coverage (in the test directory) and has been used to create the results for a new submission to the arXiv.

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