superfluidity
Noun (uncountable): A physical state of matter in which a fluid can flow with zero viscosity, meaning it experiences no internal resistance to flow. This phenomenon occurs at extremely low temperatures, typically near absolute zero, in certain liquids such as helium-4.
- (The zero-viscosity state was discovered at very low temperatures.)
- (Research into this flow property reveals large-scale quantum behavior.)
- (The fluid exhibits unusual behavior due to lack of friction.)
"Quantum superfluidity": A more specific term referring to superfluidity that arises from quantum coherence, often studied in ultracold atomic gases.
- Quantum superfluidity in Bose-Einstein condensates has been experimentally confirmed. (The zero-viscosity state in quantum gases has been observed.)
"Superfluid phase": The thermodynamic phase of matter characterized by superfluidity.
- As the temperature drops below the critical point, the material enters the superfluid phase. (The substance transitions to a state with zero viscosity.)
Superfluid (adj): describing a substance that exhibits superfluidity.
- The superfluid helium flowed without friction. (The helium had zero viscosity.)
Superfluidity (n) is the base noun; no common compound forms exist beyond "superfluid" and "superfluidity."
- Zero-viscosity flow: a descriptive phrase for the property of lacking internal friction.
- Quantum fluidity: a broader term sometimes used to describe frictionless flow in quantum systems.
- "Flow without friction": a metaphorical extension of superfluidity used in physics education.
- In superfluidity, the liquid can flow without friction, like an ideal fluid. (The physical concept is explained through this phrase.)
No phrasal verbs are associated with "superfluidity," as it is a technical noun.