Physicists Watch a Superfluid Freeze, Revealing a Strange New Quantum State of Matter

Physicists have observed a strange new quantum phase in a graphene-based system, where a superfluid appears to freeze into a solid-like state. Cooling usually pushes matter through a simple sequence. A gas condenses into a liquid, and with further cooling the liquid locks into a solid. Helium helped reveal that the quantum world can take […] Read More