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

Gerardo Cristofano·Vincenzo Marotta·Adele Naddeo·Giuliano Niccoli
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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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Gerardo Cristofano, Vincenzo Marotta, Adele Naddeo, Giuliano Niccoli. 2005-07-25. Topological order and magnetic flux fractionalization in Josephson junction ladders with Mobius boundary conditions: a twisted CFT description. https://arxiv.org/abs/hep-th/0507238

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