论文标题
Creutz超级晶格中的平面定位
Flat-band localization in Creutz superradiance lattices
论文作者
论文摘要
扁平带在无衍射光子学中起着重要的作用，并在多体物理学中引起基本兴趣。在这里，我们报告了具有可调合成量规场的Creutz超级晶格中原子集体激发态的平面定位的工程。可以独立调整晶格跳高系数的幅度和阶段，以控制平面带和Aharonov-Bohm相的状态组件。我们可以选择性地激发平坦带，并使用合成量规场来控制平面定位。我们的研究为扁平原子带提供了一个室温平台，并在探索相关拓扑材料方面拥有有希望的应用。
Flat bands play an important role in diffraction-free photonics and attract fundamental interest in many-body physics. Here we report the engineering of flat-band localization of collective excited states of atoms in Creutz superradiance lattices with tunable synthetic gauge fields. Magnitudes and phases of the lattice hopping coefficients can be independently tuned to control the state components of the flat band and the Aharonov-Bohm phases. We can selectively excite the flat band and control the flat-band localization with the synthetic gauge field. Our study provides a room-temperature platform for flat bands of atoms and holds promising applications in exploring correlated topological materials.
