Solid helium, particularly helium-4 (^4He), exhibits fascinating properties at low temperatures, leading to unique phenomena such as superfluidity and supersolidity. These phenomena arise from the ...

Nonetheless, in a surprising number of cases its behavior resembles that of an ordinary classical solid ...

In a solid like this brick ... a bit like marbles in a bucket.This is why liquids can be poured. In a gas, like helium, particles are widely spaced apart and move quickly and random directions.

"Solid-state crystals will always have some defects ... proposed to realize qubits based on electrons floating on liquid helium for the first time. In this physical system, electrons float ...