论文标题
高效率拓扑泵送与离散的超对称转换
High Efficiency Topological Pumping with Discrete Supersymmetry Transformations
论文作者
论文摘要
利用超对称转换的同一光谱，我们提出了一种一般且高保真的方法，以通过单个位点激发在离散系统中制备间隙拓扑模式。该方法包括绝热连接两个超级零件结构，将输入状态变形为所需模式。我们通过在光学波导阵列中泵送Su-Schrieffer-Heeger模型的拓扑状态来演示该方法，在该阵列中，沿传播方向进行绝热变形。在抽水和接口状态时，我们可以获得高于$ f = 0.99 $的保真度，以达到$ f = 0.99 $。
Making use of the isospectrality of Supersymmetry transformations, we propose a general and high-fidelity method to prepare gapped topological modes in discrete systems from a single-site excitation. The method consists of adiabatically connecting two superpartner structures, deforming the input state into the desired mode. We demonstrate the method by pumping topological states of the Su-Schrieffer-Heeger model in an optical waveguide array, where the adiabatic deformation is performed along the propagation direction. We obtain fidelities above $F=0.99$ for a wide range of coupling strengths when pumping edge and interface states.
