Projects
Baked Alaska
I'm using a three-minima potential described by
Where the left minimum is 1.15 times farther away from the origin than the right. I'm doing the simplist thing by nucleating a bubble in the top minimum, a, in a bulk defined by the middle mimimum, b. As a first guess, I'm setting the initial bubble radius to the Coleman bounce radius associated with a bubble of state b nucleated in state a.
The idea is that a cosmic ray hits the fluid and causes a small region to enter into a higher energy state -- possibly the non-superfluid state. As that region shrinks, the domain wall collapses in on itself. As the bubble goes to zero volume, we can't use our intutition about free passage, since we're far from the large radius limit. See movie below.
The left hand image is the field profile, the right hand image is the energy density along the same slice. The post-collision situation is actually a lot more complicated than I imageined it would be. You can see that a region of minimum c forms along the domain wall before the bubble collapses. Although it does end up in the c minimum, it's a complicated final state.
