近日，广东工业师范大学Zhoutao Lei团队研究了对称保护的Landau-Zener-Stückelberg-Majorana干涉和边态的非绝热拓扑输运。相关论文发表在2025年5月8日出版的《物理评论A》杂志上。

课题组系统地研究了手性镜像对称下的Landau-Zener-Stückelberg-Majorana（LZSM）干涉，并提出了它在边缘态非绝热拓扑输运中的应用。在这种对称性的保护下，出现了完全相消干涉，并可以通过占据概率来表征。这种对称保护的LZSM干扰能够在极短的时间内实现状态转换。为了证明该机制，研究组提供了两个不同的两级系统作为例子，并对其进行了详细的调查。 

通过调整演化速度或增加保持时间，可以观察到完全的相消干涉。此外，研究组将Su-Schrieffer-Heeger（SSH）链的拓扑边态视为一个孤立的两能级系统，利用这种机制对其进行拓扑边态分析。通过精心设计的时间序列，他们构建了拓扑边态的对称保护LZSM干扰，实现了非绝热拓扑传输。该工作揭示了一种通过非绝热拓扑输运研究量子控制、量子态转移和量子通信的替代方法。

附：英文原文

Title: Symmetry-protected Landau-Zener-Stückelberg-Majorana interference and nonadiabatic topological transport of edge states

Author: Shi Hu, Shihao Li, Meiqing Hu, Zhoutao Lei

Issue&Volume: 2025/05/08

Abstract: We systematically investigate Landau-Zener-Stückelberg-Majorana (LZSM) interference under chiral-mirror-like symmetry and propose its application to nonadiabatic topological transport of edge states. Protected by this symmetry, complete destructive interference emerges and can be characterized through occupation probability. This symmetry-protected LZSM interference enables state transitions to be achieved within remarkably short timescales. To demonstrate our mechanism, we provide two distinctive two-level systems as examples and survey them in detail. By tuning evolution speed or increasing holding time, the complete destructive interferences are observed. Furthermore, we make use of this mechanism for topological edge states of Su-Schrieffer-Heeger (SSH) chain by taking them as an isolated two-level system. Through carefully designed time sequences, we construct symmetry-protected LZSM interference of topological edge states, enabling nonadiabatic topological transport. Our work unveils an alternative way to study quantum control, quantum state transfer, and quantum communication via nonadiabatic topological transport.

DOI: 10.1103/PhysRevA.111.052414

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.111.052414