FindBounce: package for multi-field bounce actions

Understand

We are launching FindBounce, a Mathematica package for the evaluation of the Euclidean bounce action that enters the decay rate of metastable states in quantum and thermal field theories.

• It is based on the idea of polygonal bounces, which is a semi-analytical approach to solving the bounce equation by discretizing the potential into piecewise linear segments.
• This allows for a fast and robust evaluation of arbitrary potentials with specified precision and any number of scalar fields.
• Time cost grows linearly with the number of fields and/or the number of segments.