含频率合成维数的Floquet电路的次谐波振荡

Q1 Physics and Astronomy

Reviews in Physics Pub Date : 2025-01-29 DOI:10.1016/j.revip.2025.100105

Bo Lv , Shiyun Xia , Ye Tian , Ting Liu , Hongyang Mu , Zhichao Shen , Sijie Wang , Zheng Zhu , Huibin Tao , Fanyi Meng , Jinhui Shi

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引用次数: 0

摘要

在Floquet拓扑绝缘子（FTIs）中，由于零模式和π模式共存而产生倍周期振荡。在这里，利用电路的灵活性，我们构建了一个具有频率合成维度的电路来实现周期驱动模型的fti，并演示了零模式和π模式的拓扑边缘状态。与fti中观察到的倍周期振荡相反，该电路表现出周期大大超过倍驱动周期的深次谐波振荡。此外，我们探索了具有等效增强周期性驱动强度的电路的频带。该方法为研究Floquet拓扑相位提供了一种灵活的方案，为实现深度亚波长系统开辟了一条新的途径。

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Subharmonic oscillations in the Floquet circuit with the frequency-synthesis dimension

The period-doubling oscillation emerges due to the coexistence of zero and π modes in Floquet topological insulators (FTIs). Here, leveraging the flexibility of the electric circuit, we construct a circuit with frequency-synthetic dimension to realize the FTIs of a periodically-driven model and demonstrate the topological edge states of zero and π modes. In contrast to the period-doubling oscillations observed in FTIs, the circuit exhibits deeply-subharmonic oscillations with periods extensively exceeding the doubling-driven period. Furthermore, we explore the band of the circuit with the equivalent-enhanced periodically-driven strength. Our method provides a flexible scheme to study Floquet topological phases, and open a new path for realizing the deeply subwavelength system.

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来源期刊

Reviews in Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

21.30

自引率

0.00%

发文量

审稿时长

98 days

期刊介绍： Reviews in Physics is a gold open access Journal, publishing review papers on topics in all areas of (applied) physics. The journal provides a platform for researchers who wish to summarize a field of physics research and share this work as widely as possible. The published papers provide an overview of the main developments on a particular topic, with an emphasis on recent developments, and sketch an outlook on future developments. The journal focuses on short review papers (max 15 pages) and these are freely available after publication. All submitted manuscripts are fully peer-reviewed and after acceptance a publication fee is charged to cover all editorial, production, and archiving costs.