标题： 相对论畴壁在储备计算中的混沌增殖 显示英文标题

标题： Chaotic Proliferation of Relativistic Domain Walls for Reservoir Computing

摘要： 磁性畴壁在反铁磁体中已被提出作为加快传统信息处理的关键组件，由于其增强的稳定性和超快传播特性。 然而，像储备计算这样的非常规计算方法如何利用这些特性仍然是一个开放问题。 在本工作中，我们展示了通过从一个单个种子畴壁中产生的多个畴壁的增殖，可以在高速移动接近相对论极限的情况下形成复杂的畴壁图案。 我们证明了由多达数百个畴壁组成的最终磁性纹理，随着初始种子畴壁的整体守恒拓扑电荷，其可能具有混沌的时空动力学特性，这取决于通过施加电流引起的交替自旋轨道场的强度。 这些发现使我们能够设计一种多畴壁储备系统，该系统相对于自旋轨道场输入具有高短期记忆和非线性，适用于超快、节能的非常规储备计算。 显示英文摘要

摘要： Magnetic domain walls in antiferromagnets have been proposed as key components for faster conventional information processing, thanks to their enhanced stability and ultrafast propagation. However, how non-conventional computing methods like reservoir computing might take advantage of these properties remains an open question. In this work, we show how complex domain wall patterns can form through the proliferation of multiple domain walls from the energy stored in a single seed domain wall driven to move at a high speed close to the relativistic limit. We demonstrate that the resulting magnetic texture, consisting of up to hundreds of domain walls with an overall conserved topological charge as the initial seed domain wall, can possess chaotic spatiotemporal dynamics depending on the strength of staggered spin-orbit field induced via applied current. These findings allow us to design a multiple-domain-wall reservoir with high short-term memory and nonlinearity with respect to spin-orbit field inputs, that is suitable for ultrafast, energy-efficient, non-conventional reservoir computing.