FindBounce: package for multi-field bounce actions. (arXiv:2002.00881v2 [hep-ph] UPDATED)
<a href="http://arxiv.org/find/hep-ph/1/au:+Guada_V/0/1/0/all/0/1">Victor Guada</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Nemevsek_M/0/1/0/all/0/1">Miha Nemevšek</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Pintar_M/0/1/0/all/0/1">Matevž Pintar</a>
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. Computation with 20 fields takes $sim 2$
seconds with $0.5%$ accuracy of the action. The FindBounce function is simple
to use with the native Mathematica look and feel, it is easy to install, and
comes with detailed documentation and physical examples, such as the
calculation of the nucleation temperature. We also provide timing benchmarks
with comparisons to existing tools, where applicable.
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. Computation with 20 fields takes $sim 2$
seconds with $0.5%$ accuracy of the action. The FindBounce function is simple
to use with the native Mathematica look and feel, it is easy to install, and
comes with detailed documentation and physical examples, such as the
calculation of the nucleation temperature. We also provide timing benchmarks
with comparisons to existing tools, where applicable.
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