We argue that frustrated Josephson junction arrays may support a topologically ordered superconducting ground state, characterized by a non-trivial groundstate 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.
Superconducting Topological Fluids in Josephson Junction Arrays
DIAMANTINI, MARIA CRISTINA;SODANO, Pasquale;
2006
Abstract
We argue that frustrated Josephson junction arrays may support a topologically ordered superconducting ground state, characterized by a non-trivial groundstate 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.File in questo prodotto:
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