Topological order and magnetic flux fractionalization in Josephson junction ladders with Mobius boundary conditions: a twisted CFT description
arXiv:hep-th/0507238
Abstract
We propose a CFT description for a closed one-dimensional fully frustrated ladder of quantum Josephson junctions with Mobius boundary conditions (see cond-mat/0503555; we show how such a system can develop topological order thanks to flux fractionalization. Such a property is crucial for its implementation as a "protected" solid state qubit.
19 pages, 3 figures, to appear in Proceedings of PI-2005, 8-th International Conference on Path Integrals. From Quantum Information to Cosmology