论文标题
量子棘轮的耗散设计定向过滤器
Dissipation engineered directional filter for quantum ratchets
论文作者
论文摘要
我们通过耗散，动态的杂质展示了在Hermitian Hamiltonian量子棘轮中的运输矫正。尽管大部分棘轮都支持两个方向的传输，但局部杂质的正确设计的损失函数充当了移动状态的方向依赖滤波器。我们通过利用Floquet-S-Matrix理论来理论上分析了该方案。此外，我们在定期调制的血浆波导阵列中直接对单向透射率进行直接实验观察，其中包含具有工程损失的局部杂质。
We demonstrate transport rectification in a hermitian Hamiltonian quantum ratchet by a dissipative, dynamic impurity. While the bulk of the ratchet supports transport in both directions, the properly designed loss function of the local impurity acts as a direction-dependent filter for the moving states. We analyse this scheme theoretically by making use of Floquet-S-Matrix theory. In addition, we provide the direct experimental observation of one-way transmittance in periodically modulated plasmonic waveguide arrays containing a local impurity with engineered losses.
