A complementary approach is to swap the helium gas for liquid helium, which has a much higher density. Sótér and colleagues found that this method could be used to measure very narrow lines in the ...

Physicists have established why objects moving through superfluid helium-3 lack a speed limit; exotic particles that stick to all surfaces in the superfluid. The discovery may guide applications in ...

In a new study published in Nature Physics, researchers have developed the first controlled method for exciting and observing ...

For the first time, researchers have documented the long-predicted occurrence of 'walls bound by strings' in superfluid helium-3. The existence of such an object, originally foreseen by cosmology ...