论文标题
拓扑及其在耗散aharonov-bohm链中的检测
Topology and its detection in a dissipative Aharonov-Bohm chain
论文作者
论文摘要
在最近的一个实验中，在玻色网凝结物的动量空间中实施了耗散性的aharaonov-bohm（AB）链。该链由一系列由合成磁通量螺纹螺纹的耗散aB环形成，表现出非富甲状性皮肤效应，因此需要非Bloch带理论来说明其拓扑结构。在这项工作中，我们系统地表征了耗散AB链的拓扑特征，尤其是超出实验实现的参数制度。此外，我们表明，正如实验中所证明的那样，原子注射光谱不仅能够揭示拓扑边缘状态，而且还可以揭示系统的一般条带结构。然后，我们讨论拓扑边缘状态的替代动态检测方案。鉴于模型的一般性和检测方案的一般性，我们的工作有助于对未来对各种量子模拟器中具有非铁皮皮肤效应的拓扑模型的研究。
In a recent experiment, a dissipative Aharaonov-Bohm (AB) chain was implemented in the momentum space of a Bose-Einstein condensate. Formed by a series of dissipative AB rings threaded by synthetic magnetic flux, the chain exhibits the non-Hermitian skin effect, necessitating the non-Bloch band theory to account for its topology. In this work, we systematically characterize topological features of the dissipative AB chain, particularly beyond the experimentally realized parameter regime. Further, we show that an atom-injection spectroscopy is not only capable of revealing topological edge states, as has been demonstrated in the experiment, but also the general band structure of the system. We then discuss alternative dynamic detection schemes for the topological edge states. Given the generality of the model and the detection schemes, our work is helpful to future study of topological models with non-Hermitian skin effects across a variety of quantum simulators.
