Incoherence-assisted mode excitation in non-Hermitian resonant systems
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866914527064358912 |
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| author | Hashemi, Amin Zimmermann, Vinzenz Perez-Leija, Armando Blanco-Redondo, Andrea |
| author_facet | Hashemi, Amin Zimmermann, Vinzenz Perez-Leija, Armando Blanco-Redondo, Andrea |
| contents | We introduce and experimentally demonstrate an approach for selective mode excitation in non-Hermitian resonant systems using incoherent light. This method eliminates the need for precise phase control that is often required in coherent excitation schemes. Using this technique on a silicon photonic platform with coupled ring resonators, we successfully excite the topological edge state of a non-Hermitian Su-Schrieffer-Heeger (SSH) model. Our work shows that incoherence-assisted excitation is a robust and passive strategy for topological state preparation, which broadens the scope of non-Hermitian topological photonics thereby providing a practical and experimentally viable tool for selective mode excitation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_15550 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Incoherence-assisted mode excitation in non-Hermitian resonant systems Hashemi, Amin Zimmermann, Vinzenz Perez-Leija, Armando Blanco-Redondo, Andrea Optics Quantum Physics We introduce and experimentally demonstrate an approach for selective mode excitation in non-Hermitian resonant systems using incoherent light. This method eliminates the need for precise phase control that is often required in coherent excitation schemes. Using this technique on a silicon photonic platform with coupled ring resonators, we successfully excite the topological edge state of a non-Hermitian Su-Schrieffer-Heeger (SSH) model. Our work shows that incoherence-assisted excitation is a robust and passive strategy for topological state preparation, which broadens the scope of non-Hermitian topological photonics thereby providing a practical and experimentally viable tool for selective mode excitation. |
| title | Incoherence-assisted mode excitation in non-Hermitian resonant systems |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2604.15550 |