Keldysh Ginzburg-Landau action of fluctuating superconductors

Details Keldysh Ginzburg-Landau action of fluctuating superconductors Keldysh Ginzburg-Landau action of fluctuating superconductors

2007-06-19

arxiv.org/abs/0706.2884v2

Phys. Rev. B 76, 094518 (2007)

Physics

Condensed Matter

Superconductivity

16 pages, 2 figures

Scientific paper

10.1103/PhysRevB.76.094518

We derive Ginzburg-Landau action by systematically integrating out electronic degrees of freedom in the framework of the Keldysh nonlinear sigma-model of disordered superconductors. The resulting Ginzburg-Landau functional contains a nonlocal $\Delta$-dependent contribution to the diffusion constant, which leads, for example, to Maki-Thompson corrections. It also exhibits an anomalous Gor'kov-Eliashberg coupling between $\Delta$ and the scalar potential, as well as a peculiar nonlocal nonlinear term. The action is gauge invariant and satisfies the fluctuation dissipation theorem. It may be employed e.g. for calculation of higher moments of the current fluctuations.

Affiliated with

Also associated with

No associations

Rating

Keldysh Ginzburg-Landau action of fluctuating superconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Keldysh Ginzburg-Landau action of fluctuating superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keldysh Ginzburg-Landau action of fluctuating superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-33918