arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1809.09309cond-mat.mes-hallnlin.CD
收藏

空腔磁力学中的PT对称磁混沌

PT-Symmetric magnetic Chaos in cavity magnomechanics

Mei Wang, Duo Zhang, Yu-Ying Wu, Tai-Shuang Yin, Zhao-Yu Sun

摘要:

在这里,我们研究了一种新的腔磁力学系统,其中磁振子由微波场驱动与声子模式耦合的非线性磁致伸缩相互作用(辐射压力类)。基于这种相互作用,我们数值证明了该系统中的PT对称混沌。在单单色光驱动下,混沌阈值降低到很低的水平,这是由于PT对称性破缺相的非线性动力学增强。此外,通过简单地操纵PT对称相和PT对称破缺相之间的相变,我们可以使系统在混沌区和混沌区之间切换。我们的工作可以拓宽腔磁力学的范围,并为磁混沌相关的安全通信提供有前途的应用。

英文摘要:

Here, we research a novel cavity magnomechanical system, where magnon driven by a microwave field couples with a phonon mode with a nonlinear magneostrictive interaction (radiation pressure-like). Based on this interaction, we numerically demonstrate PT-symmetric chaos in this system. With only one monochrome driving, the chaotic threshold is lowered to a rather low levels, this is due to the dynamical enhancement of nonlinearity in the PT-symmetry broken phase. Moreover, by simply manipulating the phase transition between PT-symmetry phase and PT-symmetry broken phase, we can switch the system between into and out of chaotic regimes. Our work may broaden the cavity magnomechanics and provide a promising application for magnetic chaos-related security communications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑