How to demtermine a thick-walled bubble or thin-walled bubble about cosmotransitions HOT 1 CLOSED

The best way to determine if a bubble is thick-walled is to examine the shape of the bubble itself. If the transition from metastable to stable vacua takes up a substantial portion of the bubble's radius, then the bubble is thick-walled. If not, then it's thin-walled. The temperature by itself won't tell you this, although you're right that bubbles tend to be thick-walled when T_n is much less than T_c. A better rule of thumb is to look at the shape of the potential at the nucleation temperature. If the potential barrier is much larger than the potential difference between vacuum states, then you'll likely be in a thin-walled regime.

You should be able to inspect the bubble profile by looking at the profile1D output of cosmoTransition.pathDeformation.fullTunneling. This info will also be returned in cosmoTransitions.transitionFinder.findAllTransitions(). See the doc strings for the exact format.

from cosmotransitions.