Self-Duality in Superconductor-Insulator Quantum Phase Transitions

Details Self-Duality in Superconductor-Insulator Quantum Phase Transitions Self-Duality in Superconductor-Insulator Quantum Phase Transitions

2000-02-02

arxiv.org/abs/cond-mat/0002025v2

Phys. Rev. Lett. 85, 3934 (2000)

Physics

Condensed Matter

4 pages, no figures, 2nd version: title (slightly) changed and text accordingly

Scientific paper

10.1103/PhysRevLett.85.3934

It is argued that close to a Coulomb interacting quantum critical point, the interaction between two vortices in a disordered superconducting thin film separated by a distance $r$ changes from logarithmic in the mean-field region to $1/r$ in the region dominated by quantum critical fluctuations. This gives support to the charge-vortex duality picture of the observed reflection symmetry in the current-voltage characteristics on both sides of the transition.

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