Physicists have watched a quantum fluid do something once thought almost impossible: stop moving. In experiments with ultra-thin graphene, researchers observed a superfluid—normally defined by its ...

Superfluid helium and Bose–Einstein condensation represent two distinct, yet profoundly interconnected, quantum phenomena that emerge under ultra‐low temperature conditions. In superfluid helium, the ...

Cool stuff: an experiment done by Samuli Autti (right) and colleagues at Lancaster University has shed new light on the mechanical properties of superfluid helium-3. (Courtesy: Mike Thompson) For the ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this study: For nearly a century, scientists ...

If you take helium gas and you cool it at atmospheric pressure to 4.2 K it becomes a liquid. Keep cooling to 2.2 K and the helium enters its superfluid phase, called helium II. Superfluid helium has ...