集成磁振子半加法器
Integrated magnonic half-adder
摘要：
自旋波及其量子磁振子开辟了高速低功耗信息处理的一个很有前途的分支。最近在实现独立的磁振子数据处理单元方面取得了几个重要的里程碑，包括逻辑门、磁振子晶体管和非布尔计算单元。然而，实现由至少两个逻辑门组成的集成磁振子电路并适合进一步集成仍然是一个未解决的挑战。在这里，我们证明了这样的集成电路数字上的例子，磁振半加法器。它的关键元件是一个非线性定向耦合器，作为组合的XOR和AND逻辑门，利用自旋波色散对其幅度的依赖性。该电路仅由三个平面纳米波导组成，并处理磁振子域内的所有信息。所提出的设备的基准进行显示sub-aJ每个操作的能量消耗的潜力。
英文摘要：
Spin waves and their quanta magnons open up a promising branch of high-speed and low-power information processing. Several important milestones were achieved recently in the realization of separate magnonic data processing units including logic gates, a magnon transistor and units for non-Boolean computing. Nevertheless, the realization of an integrated magnonic circuit consisting of at least two logic gates and suitable for further integration is still an unresolved challenge. Here we demonstrate such an integrated circuit numerically on the example of a magnonic half-adder. Its key element is a nonlinear directional coupler serving as combined XOR and AND logic gate that utilizes the dependence of the spin wave dispersion on its amplitude. The circuit constitutes of only three planar nano-waveguides and processes all information within the magnon domain. Benchmarking of the proposed device is performed showing the potential for sub-aJ energy consumption per operation.
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