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.
De Santis D., Guarcello C., Spagnolo B., Carollo A., Valenti D. (2022). Generation of travelling sine-Gordon breathers in noisy long Josephson junctions. CHAOS, SOLITONS AND FRACTALS, 158(158), 1-5 [10.1016/j.chaos.2022.112039].
Generation of travelling sine-Gordon breathers in noisy long Josephson junctions
De Santis D.
;Guarcello C.;Spagnolo B.;Carollo A.;Valenti D.
2022-04-11
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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