论文标题

长期约瑟夫森连接处的横向引起的旅行呼吸器

Supratransmission-induced travelling breathers in long Josephson junctions

论文作者

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

论文摘要

理论上,由于非线性上递质效果而导致的正弦呼吸器的出现在长长的约瑟夫森连接处进行了研究,该连接是由合适的磁性脉冲驱动的,考虑到存在耗散,当前的偏置和热噪声源。模拟清楚地表明,根据脉冲的形状和主系统参数的值,这种配置只能有效地产生呼吸激励。此外,观察到仅呼吸器生成概率的非单调行为是噪声强度的函数。最后,上横向引起的呼吸器的动力学特征是查看诸如辐射衰减寿命和培养基能量之类的数量。

The emergence of travelling sine-Gordon breathers due to the nonlinear supratransmission effect is theoretically studied in a long Josephson junction driven by suitable magnetic pulses, taking into account the presence of dissipation, a current bias, and a thermal noise source. The simulations clearly indicate that, depending on the pulse's shape and the values of the main system parameters, such a configuration can effectively yield breather excitations only. Furthermore, a nonmonotonic behavior of the breather-only generation probability is observed as a function of the noise intensity. Finally, the dynamics of the supratransmission-induced breathers is characterized by looking at quantities such as their radiative decay lifetime and the medium's energy.

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