In condensed matter physics, a Cooper pair or BCS pair is a pair of electrons (or other fermions) bound together at low temperatures in a certain manner first described in 1956 by American physicist Leon Cooper. Cooper showed that an arbitrarily small attraction between electrons in a metal can cause a paired state of electrons to have a lower ene...
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bound pair of electrons in a superconductor NOTE - Cooper pairs are formed from electrons with energies near the Fermi level because in the superconducting state the Cooper pairs have lower energy than the corresponding electrons in the normal state.
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two electrons having opposed wave number vector and spin, bound by an attractive interaction in a superconductor in spite of their electric charges of the same sign
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