论文标题
由于移动导体而导致的一对与非互惠相互作用的磁偶极子的动力学
Dynamics of a pair of magnetic dipoles with nonreciprocal interactions due to a moving conductor
论文作者
论文摘要
最近在理论上和实验上证明了移动导体的存在可以打破磁偶极子之间相互作用的互惠性。在本文中，我们调查了非交流性能对一对刚性XY偶极子的动力学的影响，这些偶极子已在实验中实现。特别是，我们专注于能量不进行的，这是非进取心的结果。我们发现动力学确实具有机制，其中动能二次增长。但是，能量吸收是否发生在很大程度上取决于偶极子上的初始条件。各种初始条件的模拟揭示了复杂的依赖性，从而在初始条件空间中产生了丰富的能量吸收机制的结构。然而，我们提供了对这些观察结果的定性解释，将缺乏能量吸收视为相位空间中动力学的限制。
Recently it was demonstrated theoretically and experimentally that the presence of a moving conductor can break the reciprocity in the interactions between magnetic dipoles. In this article we investigate the influence of nonreciprocity on the dynamics of a pair of rigid XY dipoles, which have been realized in experiments. In particular, we focus on the energy nonconservation, which is a consequence of the nonreciprocity. We find that the dynamics indeed has regimes, wherein the kinetic energy grows quadratically. However, whether energy absorption occurs depends strongly on the initial conditions on the dipoles. Simulations for various initial conditions reveal an intricate dependence, resulting in a rich structure of the energy absorbing regime in the initial condition space. Nevertheless, we provide a qualitative explanation of these observations, interpreting the absence of energy absorption as a confinement of the dynamics in phase space.
