SUPERFLUIDITY - Phenomena by which, at sufficiently low temperatures, a fluid can flow with zero viscosity. Its causes are associated with superconductivity.
Superfluidity
A phenomenon occurring in liquid helium-4 below about 2.17 degrees, in which the liquid flows through thin capillaries without apparent friction and displays many other anomalous properties.
In 1938, Russian physicist Pyotr Leonidovich Kapitsa discovered that helium-4 has almost no viscosity at temperatures near absolute zero, a phenomenon now called superfluidity.
According to the correspondence principle and Ehrenfest's theorem as a system becomes larger or more massive (action Planck's constant) the classical dynamics tends to emerge, with some exceptions, such as superfluidity.
A liquid which undergoes the phenomenon of superfluidity, below the temperature at which this phenomenon sets in. [D89]
Superfluidity ...
Richard Phillips Feynman was an United States physicist known for the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the superfluidity of supercooled liquid helium, ...
The statistical mechanics of quantum systems predicted intriguing new phenomena such Bose-Einstein Condensation and superfluidity, which were experimentally verified.
 See also: Field, Quantum mechanics, Molecule, Earth, Light
  
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