Supercold Proves Superhot
Further experiments with the supercold superfluids opened another look into the innards of a neutron star. Many researchers had seen vortices in superfluids when they were rotated, and astronomers believed firmly the superfluid in neutron stars contained great vortices. You might think of them as superfluid tornadoes.
The reasoning behind this thinking is the fact that many neutron stars are pulsars—stars that emit a beam of radio waves, sometimes light, as regularly as a lighthouse as they spin at incredible rotational speeds. But sometimes a pulsar will begin to run too fast, or too slow. Astronomers believe this is due to the vortices decaying, or forming.
Researchers spun a BEC with a laser, and guess what? Vortices formed just as they believe occur in a neutron star. And as the vortices decayed, the spin rates slowed. Just what astronomers thought happened in neutron stars.
It brings to mind the little rhyme penned by physicist Lewis Richardson in the 1920s.
Big whorls have little whorls
That feed on their velocity,
And little whorls have lesser whorls
And so on to viscosity.
Except in superfluids viscosity disappears.