Supratransmission-induced travelling breathers in long Josephson junctions
Abstract
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.
Keywords
Cite
@article{arxiv.2205.01990,
title = {Supratransmission-induced travelling breathers in long Josephson junctions},
author = {Duilio De Santis and Claudio Guarcello and Bernardo Spagnolo and Angelo Carollo and Davide Valenti},
journal= {arXiv preprint arXiv:2205.01990},
year = {2023}
}
Comments
27 pages, 12 figures