Josephson junctions and AdS/CFT networks.
Theorists at QCN have proposed a novel holographic model of Josephson junctions (and networks thereof) that employs a gravitational description known as designer multi-gravity. An extension of the standard AdS/CFT correspondence in this more general framework has allowed a versatile formulation of a wide range of systems built out of weakly interconnected individual components. A simple model of a Josephson junction was analyzed, and one-dimensional Josephson-junction arrays were exhibited where it was found that the Cooper-pair condensate modulation across the chain is described by a discretized Schrodinger-type equation. The allowed configurations of such systems were found to exhibit complex behavior that includes periodic and quasi-periodic solutions, chaotic dynamics, soliton and kink solutions.