Brillouin zoneinteger quantum Hall effectphotonic metamaterialstopological invarianttopological photonics
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Abstract (AI)
The robustness of the integer quantum Hall effect of electron systems is due to the existence of a topological invariant that characterizes the variation of the electron wave function over the Brillouin zone. Topological phenomena are generic features of waves in periodic media, and this article reviews how photonic systems such as waveguide arrays and photonic metamaterials allow exploration and application of topological effects in new physical regimes and in new devices.
Key Findings
1
Photonic systems, including waveguide arrays and photonic metamaterials, enable investigation of topological effects in new physical regimes.
2
The integer quantum Hall effect’s robustness originates from a topological invariant describing electron-wavefunction variation across the Brillouin zone.
3
Topological phenomena are generic properties of waves propagating in periodic media, extending beyond electronic systems.
4
Topological photonics supports applications in novel photonic devices.
Research Object
Photonic systems in periodic media (e.g., waveguide arrays and photonic metamaterials)
Research Subject
Topological effects and their robustness, physical regimes, and device applications
Publication Details
Publication Date
2019-03-25
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