Although superconductivity was discovered in 1911, the recognition … [London, F., Superfluids, New York: Wiley, 1950] came too late to play a role in the formulation … quantum nature of matter. The superconducting state is … in a material. … The dominant interaction is collective because the properties … it couples to the charges of the electrons. … … [p. 32] To most nonspecialists, quantum mechanics is a … using a superconductor, we can avoid the statics, … intuition and commonsense, gives us "a way of …
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