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The nature and boundary of the floating phase in a dissipative Josephson junction array

Sumanta Tewari·John Toner·Sudip Chakravarty
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Abstract

We study the nature of correlations within, and the transition into, the floating phase of dissipative Josephson junction arrays. Order parameter correlations in this phase are long-ranged in time, but only short-ranged in space. A perturbative RG analysis shows that, in {\it arbitrary} spatial dimension, the transition is controlled by a continuous locus of critical fixed points determined entirely by the \textit{local} topology of the lattice. This may be the most natural example of a line of critical points existing in arbitrary dimensions.

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Sumanta Tewari, John Toner, Sudip Chakravarty. 2005-09-23. The nature and boundary of the floating phase in a dissipative Josephson junction array. https://doi.org/10.1103/physrevb.73.064503

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