How the electron-phonon coupling mechanism work in metal superconductor

Qiankai Yao

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arXiv · 1709.00656

How the electron-phonon coupling mechanism work in metal superconductor

Qiankai Yao

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Abstract

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?

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Qiankai Yao. 2017-09-03. How the electron-phonon coupling mechanism work in metal superconductor. https://arxiv.org/abs/1709.00656

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