Why does an individual fermionic electron scatter off lattice defects easily while the Cooper pairs are insusceptible? I know they condensate to a same macroscopic quantum state, but still, why can such a condensate flow effortlessly? What happens when one pair scatter off the lattice? Is there any close analogy?
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See also Intuitive reasons for superconductivity. – John Rennie Feb 27 '24 at 11:10