Generation of travelling sine-Gordon breathers in noisy long Josephson junctions

Duilio De Santis; Claudio Guarcello; Bernardo Spagnolo; Angelo Carollo; Davide Valenti

doi:10.1016/j.chaos.2022.112039

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arXiv · 2201.10277

Generation of travelling sine-Gordon breathers in noisy long Josephson junctions

Duilio De Santis·Claudio Guarcello·Bernardo Spagnolo·Angelo Carollo·Davide Valenti

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Abstract

The generation of travelling sine-Gordon breathers is achieved through the nonlinear supratransmission effect in a magnetically driven long Josephson junction, in the presence of losses, a current bias, and a thermal noise source. We demonstrate how to exclusively induce breather modes by means of controlled magnetic pulses. A nonmonotonic behavior of the breather-only generation probability is observed as a function of the noise intensity. An experimental protocol providing evidence of the Josephson breather's existence is proposed.

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Duilio De Santis, Claudio Guarcello, Bernardo Spagnolo, Angelo Carollo, Davide Valenti. 2022-01-25. Generation of travelling sine-Gordon breathers in noisy long Josephson junctions. https://doi.org/10.1016/j.chaos.2022.112039

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