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邮编：430072
通讯/办公地址：物理科学与技术学院，D303
邮箱：phmxiao@whu.edu.cn
论文
Chiral state transitions at topological degeneracies
- 发布时间：2026-03-16
- 点击次数：
- 发表刊物：Physical Review Applied
- 摘要：The manipulation of transitions between states is of fundamental importance in physical systems. It is well known that a resonant transition occurs when the frequency of the external modulation matches the energy difference between the two relevant states. In this work, we show that a different scenario emerges when the resonance transition occurs between bands exhibiting topologically nontrivial band degeneracies. We present an effective model to illustrate the distinction between modulation paths that encircle band degeneracies and those that do not. To support the predictions of the model, we perform time-domain simulations in a circuit. In this system, chiral state transitions naturally emerge. Due to the similarity in wave-function behavior, the underlying physical mechanism can be extended to photonic and acoustic platforms.
- 卷号：24
- 期号：6
- 页面范围：064022
- 是否译文：否
- 发表时间：2025-12-01