  Superconductivity in some metals at low temperature is known to arise from an
electron-phonon coupling mechanism. Such the mechanism enables an effective
attraction to bind two mobile electrons together, and even form a kind of
pairing system(called Cooper pair) to be physically responsible for
superconductivity. But, is it possible by an analogy with the electrodynamics
to describe the electron-phonon coupling as a resistivity-dependent attraction?
Actually so, it will help us to explore a more operational quantum model for
the formation of Cooper pair. In particularly, by the calculation of quantum
state of Cooper pair, the explored model can provide a more explicit
explanation for the fundamental properties of metal superconductor, and answer:
1) How the transition temperature of metal superconductor is determined? 2)
Which metals can realize the superconducting transition at low temperature?
