Dynamics and Effective Actions of BCS Superconductors

Anne van Otterlo; Dmitrii S. Golubev; Andrei D. Zaikin; Gianni Blatter

Dynamics and Effective Actions of BCS Superconductors

Superconductivity 2008-02-03 v1

Authors: Anne van Otterlo , Dmitrii S. Golubev , Andrei D. Zaikin , Gianni Blatter

Abstract

We derive effective dynamical theories for metals and BCS superconductors, based on the effective action formalism. Both the metallic regime $T\gtrsim T_{C}$ and the superconducting regime $T\ll T_{C}$ are studied in the clean and dirty limit. Furthermore, we consider the effect of particle-hole asymmetry in the band structure. Using gauge invariance, the electrodynamics of the problem is formulated in a transparent way. The effective actions are useful starting points for treating dynamical problems involving BCS superconductors.

Keywords

BCS superconductors effective action electrodynamics gauge invariance particle-hole asymmetry dirty limit clean limit

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@article{arxiv.cond-mat/9703124,
  title  = {Dynamics and Effective Actions of BCS Superconductors},
  author = {Anne van Otterlo and Dmitrii S. Golubev and Andrei D. Zaikin and Gianni Blatter},
  journal= {arXiv preprint arXiv:cond-mat/9703124},
  year   = {2008}
}

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Dynamics and Effective Actions of BCS Superconductors

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