Berry Monopole Scattering in the Synthetic Momentum Space of a Bilayer Photonic Crystal Slab
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866913958293667840 |
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| author | Le, Ngoc Duc Nguyen, D. -H. -Minh Nguyen, Dung Xuan Nguyen, Hai Son Bercioux, Dario |
| author_facet | Le, Ngoc Duc Nguyen, D. -H. -Minh Nguyen, Dung Xuan Nguyen, Hai Son Bercioux, Dario |
| contents | Berry monopoles-quantized sources of Berry curvature-are fundamental to topological phases, yet their scattering remains unexplored. Here, we report for the first time the adiabatic scattering of Berry monopoles in a bilayer photonic crystal slab combining one genuine and one synthetic momentum. Two monopoles approach, collide, and scatter within this hybrid parameter space. The process is described by an effective coupled-mode model and confirmed by full-wave simulations. We further propose an experimental scheme using chiral edge states, opening a route to probe monopole interactions in synthetic photonic systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_11983 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Berry Monopole Scattering in the Synthetic Momentum Space of a Bilayer Photonic Crystal Slab Le, Ngoc Duc Nguyen, D. -H. -Minh Nguyen, Dung Xuan Nguyen, Hai Son Bercioux, Dario Optics Mesoscale and Nanoscale Physics Berry monopoles-quantized sources of Berry curvature-are fundamental to topological phases, yet their scattering remains unexplored. Here, we report for the first time the adiabatic scattering of Berry monopoles in a bilayer photonic crystal slab combining one genuine and one synthetic momentum. Two monopoles approach, collide, and scatter within this hybrid parameter space. The process is described by an effective coupled-mode model and confirmed by full-wave simulations. We further propose an experimental scheme using chiral edge states, opening a route to probe monopole interactions in synthetic photonic systems. |
| title | Berry Monopole Scattering in the Synthetic Momentum Space of a Bilayer Photonic Crystal Slab |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2507.11983 |