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Higher-order Fabry-Pérot Interferometer from Topological Hinge States

By Chang-An Li and others
We propose an intrinsic 3D Fabry-P\'erot type interferometer, coined "higher-order interferometer", that utilizes the chiral hinge states of second-order topological insulators and cannot be equivalently mapped to 2D space because of higher-order topology. Quantum interference patterns in the two-terminal conductance of this interferometer are controllable not only by tuning the... Show more
January 21, 2021
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Higher-order Fabry-Pérot Interferometer from Topological Hinge States
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