论文标题
在光子晶格中的非亚伯式泵送
Non-abelian Thouless pumping in a photonic lattice
论文作者
论文摘要
非亚伯仪表田自然出现在具有退化水平的绝热量子系统的描述中。在这里，我们证明它们在堕落带的存在下也可以在无尽的抽水中发挥作用。为此，我们考虑了具有两个退化非分散模式的光子Lieb晶格，我们表明，当晶格参数缓慢调制时，光子的传播带有下面的非亚伯利亚仪表结构的指纹。乐队的非分散特征可以对光子传播的高度控制。我们的作品为光子和光学晶格中非亚伯仪的生成和检测铺平了道路。
Non-abelian gauge fields emerge naturally in the description of adiabatically evolving quantum systems having degenerate levels. Here we show that they also play a role in Thouless pumping in the presence of degenerate bands. To this end we consider a photonic Lieb lattice having two degenerate non-dispersive modes and we show that, when the lattice parameters are slowly modulated, the propagation of the photons bear the fingerprints of the underlying non-abelian gauge structure. The non-dispersive character of the bands enables a high degree of control on photon propagation. Our work paves the way to the generation and detection of non-abelian gauge fields in photonic and optical lattices.
