PhaseTracer: tracing cosmological phases and calculating transition properties
Peter Athron, Csaba Balázs, Andrew Fowlie, Yang Zhang
Abstract
Abstract We present a C++ software package called for mapping out cosmological phases, and potential transitions between them, for Standard Model extensions with any number of scalar fields. traces the minima of effective potential as the temperature changes, and then calculates the critical temperatures, at which the minima are degenerate. is constructed with modularity, flexibility and practicality in mind. It is fast and stable, and can receive potentials provided by other packages such as . can be useful analysing cosmological phase transitions which played an important role in the very early evolution of the Universe. If they were first order they could generate detectable gravitational waves and/or trigger electroweak baryogenesis to generate the observed matter anti-matter asymmetry of the Universe. The code can be obtained from https://github.com/PhaseTracer/PhaseTracer .