# Higher-Order Fabry-Pérot Interferometer from Topological Hinge States.

@article{Li2021HigherOrderFI, title={Higher-Order Fabry-P{\'e}rot Interferometer from Topological Hinge States.}, author={Chang-An Li and Song-Bo Zhang and Jian Li and Bjorn Trauzettel}, journal={Physical review letters}, year={2021}, volume={127 2}, pages={ 026803 } }

We propose an intrinsic three-dimensional Fabry-Pérot type interferometer, coined "higher-order interferometer," that is based on the chiral hinge states of second-order topological insulators and cannot be mapped to an equivalent two-dimensional setting because of higher-order topological obstructions. Quantum interference patterns in the two-terminal conductance of this interferometer are controllable not only by tuning the strength but also, particularly, by rotating the direction of the…

## 5 Citations

### Field-Tunable One-Sided Higher-Order Topological Hinge States in Dirac Semimetals.

- PhysicsPhysical review letters
- 2021

It is proposed that under a tilted magnetic field, the hinge states in Cd_{3}As_{2}-like Dirac semimetals can be one sided, highly tunable by field direction and Fermi energy, and robust against weak disorder.

### Dirac states in an inclined two-dimensional Su-Schrieffer-Heeger model

- PhysicsPhysical Review Research
- 2022

We propose to realize Dirac states in an inclined two-dimensional Su-Schrieﬀer-Heeger model on a square lattice. We show that a pair of Dirac points protected by space-time inversion symmetry appear…

### Topological States in Two-Dimensional Su-Schrieffer-Heeger Models

- PhysicsFrontiers in Physics
- 2022

We study the topological properties of the generalized two-dimensional (2D) Su-Schrieffer-Heeger (SSH) models. We show that a pair of Dirac points appear in the Brillouin zone (BZ), consisting a…

### Topological Phase Transitions and Evolution of Boundary States Induced by Zeeman Fields in Second-Order Topological Insulators

- PhysicsFrontiers in Physics
- 2022

Second-order topological insulators (SOTIs) are a class of materials hosting gapless bound states at boundaries with dimension lower than the bulk by two. In this work, we investigate the effect of…

### Hinge states of second-order topological insulators as a Mach-Zehnder interferometer

- PhysicsPhysical Review B
- 2023

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