Interaction with the quantum fluid filling the space prevents certain forces from propagating over long distances.

His third book, on quantum fluids, was published in 1967, and his collected papers were published in 1975.

The fraction of the liquid that forms the superfluid component is a macroscopic quantum fluid.

His research is primarily focused on the application of quantum fluids.

A quantum fluid can refer to a cluster of valence electrons moving together after they undergo fermionic condensation.

Under extremely high pressures and low temperatures electrons may condense into a quantum fluid.

A quantum fluid can also refer to a superfluid (made up of atoms).

He has published extensively in plasma physics, fluid dynamics, kinetic theory and quantum fluids.

This analysis of the steps does not apply at either extremely high pressures and/or quantum fluids at extremely low temperatures.

He proposes that the Universe is, in fact, a quantum fluid, somewhat like a superconductor.