BCS theory

BCS theory is the theory of superconductivity put forward in 1957 by John Bardeen, Leon Cooper, and John Schreiffer, who received the 1972 Nobel Prize for their effort. The basic premise of BCS theory is that under the right conditions inside a conductor, electrons can form weakly bound pairs called "Cooper pairs" that form a condensate. Pairs in the condensate experience no resistance as they travel through the conductor.