ArticleNature materials2024
Parity-time-symmetric photonic topological insulator.
Article in Nature materials, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed.
- Acoustic topological Jackiw-Rebbi states at symmetry broken interfaces.Nature communications · 2026Article
- Artificial gauge fields for sculpting topological modes on photonic chips.Nature communications · 2026Article
- Loss induced delocalization of topological boundary modes.Nature communications · 2025Article
- Measurement-induced photonic topological insulators.Science advances · 2025Article
- Reconfigurable high-dimensional synthetic photonic lattices.Science advances · 2025Article
- On-chip reconfigurable transmission in spatially chirped Floquet parity-time symmetric photonics.Science advances · 2025Article
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
Topological insulators are a concept that originally stems from condensed matter physics. As a corollary to their hallmark protected edge transport, the conventional understanding of such systems holds that they are intrinsically closed, that is, that they are assumed to be entirely isolated from the surrounding world. Here, by demonstrating a parity-time-symmetric topological insulator, we show that topological transport exists beyond these constraints. Implemented on a photonic platform, our non-Hermitian topological system harnesses the complex interplay between a discrete coupling protocol and judiciously placed losses and, as such, inherently constitutes an open system. Nevertheless, even though energy conservation is violated, our system exhibits an entirely real eigenvalue spectrum as well as chiral edge transport. Along these lines, this work enables the study of the dynamical properties of topological matter in open systems without the instability arising from complex spectra. Thus, it may inspire the development of compact active devices that harness topological features on-demand.
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Registered trials
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