Why does superfluid helium leak out of an open container?

Details Why does superfluid helium leak out of an open container? Why does superfluid helium leak out of an open container?

2011-03-02

arxiv.org/abs/1103.0517v3

Physics

Fluid Dynamics

7 pages, 3 figures; an estimate and a paragraph with a reference on page 3 added, the end rewritten, minor refinements

Scientific paper

The fact that superfluid helium always leaks out of an open container is usually explained by the phenomenon of wetting. In the present paper it is demonstrated that this explanation is unconvincing. The fact can be readily explained from the viewpoint of the interpretation of superfluidity proposed earlier by the author according to which superfluidity is an equilibrium state of liquid helium where the symmetry is spontaneously broken because of an intrinsic superflow. Experiments on the thickness of moving helium films that have given rise to much controversy are discussed as well. An experiment concerning the spontaneous superflows is proposed.

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