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Observation of breather-like states in a single Josephson cell

F. Pignatelli·A. V. Ustinov
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Abstract

We present experimental observation of broken-symmetry states in a superconducting loop with three Josephson junctions. These states are generic for discrete breathers in Josephson ladders. The existence region of the breather-like states is found to be in good accordance with the theoretical expectations. We observed three different resonant states in the current-voltage characteristics of the broken-symmetry state, as predicted by theory. The experimental dependence of the resonances on the external magnetic field is studied in detail.

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F. Pignatelli, A. V. Ustinov. 2002-08-30. Observation of breather-like states in a single Josephson cell. https://doi.org/10.1103/physreve.67.036607

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