Non-Hermitian topological filters
Fuente:
arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912695181115392 |
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| author | Zimmermann, Vinzenz Hashemi, Amin Busch, Kurt Blanco-Redondo, Andrea Perez-Leija, Armando |
| author_facet | Zimmermann, Vinzenz Hashemi, Amin Busch, Kurt Blanco-Redondo, Andrea Perez-Leija, Armando |
| contents | We introduce a non-Hermitian photonic filter that harnesses dissipation to selectively isolate a desired topological state. In science and engineering, dissipation is often used to filter incoherent waves, producing a pure coherent output. Here, we apply this principle to topological states, creating a linear filter that effectively isolates a specific topological state regardless of the initial input's coherence properties. This approach creates a dissipation-free topological subspace, where the desired states are preserved and their topological protection is enhanced. Our work provides a versatile and simple method for topological state selection, opening the door to new applications in integrated topological photonics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_15052 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Non-Hermitian topological filters Zimmermann, Vinzenz Hashemi, Amin Busch, Kurt Blanco-Redondo, Andrea Perez-Leija, Armando Optics Quantum Physics We introduce a non-Hermitian photonic filter that harnesses dissipation to selectively isolate a desired topological state. In science and engineering, dissipation is often used to filter incoherent waves, producing a pure coherent output. Here, we apply this principle to topological states, creating a linear filter that effectively isolates a specific topological state regardless of the initial input's coherence properties. This approach creates a dissipation-free topological subspace, where the desired states are preserved and their topological protection is enhanced. Our work provides a versatile and simple method for topological state selection, opening the door to new applications in integrated topological photonics. |
| title | Non-Hermitian topological filters |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2510.15052 |