Topological order and magnetic flux fractionalization in Josephson junction ladders with Mobius boundary conditions: a twisted CFT description

2005/07/25 by Gerardo Cristofano, Vincenzo Marotta, Cristofano, Gerardo +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th

paper · pdf · doi:10.48550/arxiv.hep-th/0507238

19 pages, 3 figures, to appear in Proceedings of PI-2005, 8-th International Conference on Path Integrals. From Quantum Information to Cosmology

arxiv created 2005/07/25 · arxiv updated 2009/12/01

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.

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