论文标题
通过反设计产生自旋波脉冲
Generation of Spin-Wave Pulses by Inverse Design
论文作者
论文摘要
快速宏伟的信息处理纳米版本的开发需要用短的自旋波脉冲运行，但是脉冲越短，由于扩展和分散而导致的信息损失受影响的影响越大。工程旋转波脉冲和控制其传播的能力可以解决这个问题。在这里，我们提供了一种基于逆设计的宏伟波导中具有所需时空轮廓的线性自旋波脉冲的方法。作为相关示例，我们从理论上预测，使用狭窄的条线天线，可以在最先进的波导中生成矩形和自我压缩的自旋波脉冲，富裕性> 96％。该方法需要最小的计算开销，并且是通用的，即它适用于任意靶向脉冲形状，波（交换或偶极），波导材料和波导几何形状。它也可以扩展到更复杂的镁质结构。我们的结果可能会导致大规模横幅电路用于经典和量子信息处理。
The development of fast magnonic information processing nanodevices requires operating with short spin-wave pulses, but, the shorter the pulses, the more affected they are by information loss due to broadening and dispersion. The capability of engineering spin-wave pulses and controlling their propagation could solve this problem. Here, we provide a method to generate linear spin-wave pulses with a desired spatial-temporal profile in magnonic waveguides based on inverse design. As relevant examples, we theoretically predict that both rectangular and self-compressing spin-wave pulses can be generated in state-of-the-art waveguides with fidelities >96% using narrow stripline antennas. The method requires minimal computational overhead and is universal, i.e., it applies to arbitrary targeted pulse shapes, type of waves (exchange or dipolar), waveguide materials, and waveguide geometries. It can also be extended to more complex magnonic structures. Our results could lead to the utilization of large-scale magnonic circuits for classical and quantum information processing.
