Experiments with Discrete Breathers in Josephson Arrays
The review describes expérimentai observations of intrinsic localized modes called discrete breathers in nonlinear lattices made of Josephson junctions. At first, basic facts about Josephson junctions and properties of arrays made of such junctions are explained. A theoretical model that describes Josephson ladder arrays is discussed along with the physical range of its parameters such as discreteness, damping and anisotropy. Finally, recently published observations of discrete breathers are reviewed and possible new experiments that can be done in the near future are proposed.
Key wordsDiscrete breather intrinsic localized mode nonlinear oscillator rotobreather Josephson junction superconductivity Josephson array Josephson ladder laser scanning microscopy
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