Superconducting Topological Fluids in Josephson Junction Arrays
M. Cristina Diamantini, Pasquale Sodano, Carlo A. Trugenberger
Abstract
We argue that the frustrated Josephson junction arrays may support a topologically ordered superconducting ground state, characterized by a non-trivial ground state degeneracy on the torus. This superconducting quantum fluid provides an explicit example of a system in which superconductivity arises from a topological mechanism rather than from the usual Landau-Ginzburg mechanism.
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