# Decoupling in the one-dimensional frustrated quantum XY model and Josephson-junction ladders: Ising critical behavior.

@article{Granato1993DecouplingIT, title={Decoupling in the one-dimensional frustrated quantum XY model and Josephson-junction ladders: Ising critical behavior.}, author={Granato}, journal={Physical review. B, Condensed matter}, year={1993}, volume={48 10}, pages={ 7727-7730 } }

A generalization of the one-dimensional frustrated quantum [ital XY] model is considered in which the interchain and intrachain coupling constants of the two infinite [ital XY] (planar rotor) chains have different strengths. The model can describe the superconductor to insulator transition due to charging effects in a ladder of Josephson junctions in a magnetic field with half a flux quantum per plaquette. From a fluctuation-effective action, this transition is expected to be in the… Expand

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