关键词: 拓扑电路, 非厄米系统, 相变, 趋肤效应

Abstract: To address the challenge that concepts in topological and non-Hermitian physics are abstract and difficult to visualize in teaching, this paper employs a one-dimensional unidirectional transmission topolectrical circuit as a teaching vehicle. Combined with the unidirectional Su-Schrieffer-Heeger model, we explore its potential applications and practical implementation pathways in physics education. The results reveal that this circuit can achieve a tunable skin effect by adjusting capacitances without altering the topological phase. Consequently, by controlling relevant circuit components, both the skin effect phase transition and the topological phase transition can be observed separately. In summary, this one-dimensional unidirectional transmission topolectrical circuit provides a feasible solution for teaching and researching topics related to quantum topology and non-Hermitian physics.

Key words: topolectrical circuit, non-Hermitian system, phase transition, skin effect