BASIC CONNECTION BETWEEN SUPERCONDUCTIVITY AND SUPERFLUIDITY

A basic and inherently simple connection is shown to exist between sup erconductivity and superfluidity. It is shown that the author's previo usly derived general equation, which agrees well with the superconduct ing transition temperatures for the heavy-electron superconductors, me tallic superconductors, oxide superconductors, metallic hydrogen, and neutron stars, also works well for the superfluid transition temperatu re of 2.6 mK for liquid He-3. Reasonable estimates are made from 10(-3 ) to 10(9) K a range of 12 orders of magnitude. The same paradigm appl ies to the superfluid transition temperature of liquid He-4, but resul ts in a slightly different equation. The superfluid transition tempera ture for dilute solutions of He-3 in superfluid He-4 is estimated to b e approximately 1-10 muK. This paradigm works well in detail for metal lic, cuprate, and organic superconductors.