superfluid
Zero-resistance flowing substance
A superfluid is a liquid that flows without friction or viscosity, a quantum mechanical state achieved at temperatures near absolute zero.
Liquid helium becomes superfluid below about two degrees Kelvin, able to climb container walls and pass through microscopic openings.
As an adjective, superfluid describes this frictionless state: superfluid helium, superfluid behavior.
Stable helium isotope
- helium-3Light noble gas variant
- cryogenicsUltralow temperature science
- isotopesAtomic number twins
- low-temperatureLacking heat, cool
Having no resistance
- viscosityFluid's flow resistance
- vorticesRotating fluid masses
- circulationMovement through a system
- laminarArranged in thin layers
Gas turned to liquid
- coherenceLogical internal consistency
- wavefunctionQuantum state's mathematical representation
- superpositionCoexisting in multiple states
- entanglementState of being intertwined
macroscopic · quantization · zero-point · tunneling · nonlocality · decoherence · qubit · photon
Material with zero electrical resistance
- superfluidityQuantum state, zero viscosity
- symmetry-breakingLoss of balanced equivalence
helium-4
Stable helium isotope
- helium-3Light noble gas variant
- cryogenicsUltralow temperature science
- isotopesAtomic number twins
frictionless
Having no resistance
- viscosityFluid's flow resistance
- vorticesRotating fluid masses
- circulationMovement through a system
laminar · streamline · capillary · irrotational · hydrodynamics
condensate
Gas turned to liquid
- coherenceLogical internal consistency
- wavefunctionQuantum state's mathematical representation
- superpositionCoexisting in multiple states
entanglement · macroscopic · quantization · zero-point · tunneling · nonlocality · decoherence · qubit · photon · spin
superconductor
Material with zero electrical resistance
- superfluidityQuantum state, zero viscosity
- symmetry-breakingLoss of balanced equivalence
excitations
Acts of energizing
- matter statessolid, liquid state, plasma, vapor, gaseous
- exotic mattersuperfluidity, antimatter, dark matter
- quantum statesground state, excited state, mixed state, qubit, singlet