Kinetic energy driven superfluidity and superconductivity and the origin of the Meissner effect

• Helium expels mass from its container when it is superfluid.
• Superconductors expel magnetic fields.
• We propose that superconductors expel charge from their interior.
• Both superfluidity and superconductivity are proposed to be kinetic energy driven.
• To the same natural effects we must, so far as possible, assign the same causes.

Superfluidity and superconductivity have many elements in common. However, I argue that their most important commonality has been overlooked: that both are kinetic energy driven. Clear evidence that superfluidity in 4He4He is kinetic energy driven is the shape of the λλ transition and the negative thermal expansion coefficient below TλTλ. Clear evidence that superconductivity is kinetic energy driven is the Meissner effect: I argue that otherwise the Meissner effect would not take place. Associated with this physics I predict that superconductors expel negative charge from the interior to the surface and that a spin current exists in the ground state of superconductors (spin Meissner effect). I propose that this common physics of superconductors and superfluids originates in rotational zero point motion. This view of superconductivity and superfluidity implies that rotational zero-point motion is a fundamental property of the quantum world that is missed in the current understanding.