镜像对称无序系统宽带传输增强的实验证据
Experimental evidence of enhanced broadband transmission in disordered systems with mirror symmetry
摘要：
我们证明了在微波测量的宽带增强传输通过一个不透明的障碍，由于镜像对称。这种增强依赖于由多通道腔的左界面和右界面处的强内反射引起的镜散射路径之间的相长干涉。我们观察到一个很强的灵敏度的电导从腔中心的障碍的移位。值得注意的是，可以通过调整腔内的无序程度来进一步增加镜像对称性的影响。我们报告了一个额外的增强电导发现对称放置随机定位的散射体。我们的结果阐明了对称性和无序关联对复杂系统传输的影响。
英文摘要：
We demonstrate in microwave measurements the broadband enhancement of transmission through an opaque barrier due to mirror symmetry. This enhancement relies on constructive interference between mirror scattering paths resulting from strong internal reflections at the left and right interfaces of a multichannel cavity. We observe a strong sensitivity of the conductance to a shift of the barrier from the center of the cavity. Remarkably, the impact of mirror symmetry can be further increased by tuning the degree of disorder within the cavity. We report an additional enhancement of the conductance found by symmetrically placing randomly located scatterers. Our results illuminate the impact of symmetry and disorder correlation on transmission through complex systems.
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