Anomalous scaling dimensions and stable charged fixed-point of type-II superconductors

Details Anomalous scaling dimensions and stable charged fixed-point of type-II superconductors Anomalous scaling dimensions and stable charged fixed-point of type-II superconductors

2000-02-14

arxiv.org/abs/cond-mat/0002197v1

Physics

Condensed Matter

Superconductivity

Accepted for publication in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.84.3426

The critical properties of a type-II superconductor model are investigated using a dual vortex representation. Computing the propagators of gauge field $\vec{A}$ and dual gauge field $\vec{h}$ in terms of a vortex correlation function, we obtain the values $\eta_A=1$ and $\eta_h=1$ for their anomalous dimensions. This provides support for a dual description of the Ginzburg-Landau theory of type-II superconductors in the continuum limit, as well as for the existence of a stable charged fixed point of the theory, not in the 3DXY universality class.

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