We construct an electrical circuit to realize a modified Haldane lattice exhibiting the phenomenon of antichiral edge states. The circuit consists of a network of inductors and capacitors with interconnections reproducing the effects of a magnetic vector potential. The next nearest neighbor hoppings are configured differently from the standard Haldane model, and as predicted by earlier theoretical studies, this gives rise to antichiral edge states that propagate in the same direction on opposite edges and coexist with bulk states at the same frequency. Using pickup coils to measure voltage distributions in the circuit, we experimentally verify the key features of the antichiral edge states, including their group velocities and ability to propagate consistently in a Möbius strip configuration.

我们构建了一个电路，以实现具有反手性边缘态现象的改进的Haldane晶格。该电路由一个电感器和一个电容器网络组成，它们之间的互连可再现磁矢量势的影响。次近邻的跳变与标准Haldane模型的配置不同，并且如早期理论研究所预测的那样，这会产生反手性边缘态，该反手性边缘态在相同的方向上在相对的边缘上传播，并以相同的频率与体态共存。使用拾波线圈测量电路中的电压分布，我们通过实验验证了反手性边缘状态的关键特征，包括它们的群速度和在莫比乌斯带状结构中一致传播的能力。