Reading what I could find on Bosenovas, I find myself pretty worried.
I'd say that finding out what happens in this phenomenon is pretty
important, but one of the seriously worrisome possibilities is that a
black hole was formed and escaped, as it would probably do, I'd
imagine a very small black hole, if it would not immediately
evaporate, would punch through anything, more penetrating than a
neutron, it would simply absorb anything that would otherwise stop
this "particle."
Suddenly all those stories about how the LHC, with its huge
quantities of helium in Bose-Einstein Condensate temperatures, might
cause a huge explosion or other utterly catastrophic consequences,
don't seem quite so crazy. The chance may be low but ... the
consequences could be so enormous that even a very low chance is
stunningly dangerous.
If the formation of a very small black hole is a serious possibility,
then even repeating the experiment on a small scale could be very
dangerous. The first experiments may have been lucky, the black hole,
if formed, may have escaped to empty space, indeed, that might even
be likely. But if the accidents of formation directed it toward the
center of the earth, with low enough momentum that it was slowed by
the matter it encountered to a stop so that it had more time to
encounter more matter ... well, we might never know what hit us.
At the very least, the existing experimental data should be very
closely examined, the worst-case scenarios considered, and future
experiments designed. Or experiments that might create these
conditions prohibited! A lot of BEC helium has been made and studied,
and no macroscopic explosions to my knowledge, but what could happen
when helium BEC is exposed to new conditions is unknown, of course.
Could the conditions of a Bosenova with helium be created?
Don't ask me! I surely don't know.
