The SimpleBounce package calcualtes the Euclidean action of the bounce solution which contributes to the false vacuum decay. The algorithm is based on the flow equation which is proposed in arXiv:1907.02417. For more details of the code, please read arXiv:1908.10868.
The following sample codes are complied by make.
This calculate the bounce action for a single scalar field model with V(phi) = (phi^2)/2 - (phi^3)/3.
The source file is sample1.cc
run_simplebounce.sh calculate the bounce solution and the bounce action for several sample models,
which are taken from
Table 1 in arXiv:1901.03714
and Eq. (40-43) in arXiv:1906.10829.
You can compare the results and performance with CosmoTransitions
by using benchmark/compare_with_cosmotransitions/run_cosmotransitions.py.
change_n_tau.x calculate the bounce action and measure the runtime for different parameter settings.
run.sh plots the results.
- R. Sato, "A Simple Gradient Flow Equation for the Bounce Solution," arXiv:1907.02417 [hep-ph], Phys.Rev.D 101 (2020) 1, 016012
- R. Sato, "SimpleBounce : a simple package for the false vacuum decay." arXiv:1908.10868 [hep-ph], Comput.Phys.Commun. 258 (2021) 107566