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

被引：16
|
作者：
De Santis, Duilio [1 ]
Guarcello, Claudio [2 ]
Spagnolo, Bernardo [1 ,3 ]
Carollo, Angelo [1 ]
Valenti, Davide [1 ]
机构：
[1] Univ Palermo, Dipartimento Fis & Chim E Segre, Grp Interdisciplinary Theoret Phys, I-90128 Palermo, Italy
[2] Univ Salerno, Dipartimento Fis E R Caianiello, I-84084 Fisciano, Salerno, Italy
[3] Lobachevsky State Univ, Radiophys Dept, Nizhnii Novgorod 603950, Russia
来源：
CHAOS SOLITONS & FRACTALS | 2022年 / 158卷
关键词：
Long Josephson junctions; Travelling sine-Gordon breathers; Stochastic fluctuations; Nonlinear supratransmission; DISCRETE BREATHERS; NONLINEAR SUPRATRANSMISSION; SOLITONS; DYNAMICS; EXCITATIONS; STATE;
D O I：
10.1016/j.chaos.2022.112039
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
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.(c) 2022 Elsevier Ltd. All rights reserved.
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页数：5
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