Fast and length-independent transport time supported by topological edge states in finite-size Su-Schrieffer-Heeger chains
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arXiv
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911285993537536 |
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| author | Chang, Yu-Han Torres, Nadia Daniela Rivera Manrique, Santiago Figueroa Robles, Raul A. Robles Silalahi, Vanna Chrismas Wu, Cen-Shawn Wang, Gang Marcucci, Giulia Pilozzi, Laura Conti, Claudio Lee, Ray-Kuang Kuo, Watson |
| author_facet | Chang, Yu-Han Torres, Nadia Daniela Rivera Manrique, Santiago Figueroa Robles, Raul A. Robles Silalahi, Vanna Chrismas Wu, Cen-Shawn Wang, Gang Marcucci, Giulia Pilozzi, Laura Conti, Claudio Lee, Ray-Kuang Kuo, Watson |
| contents | In order to transport information with topological protection, we explore experimentally the fast transport time using edge states in one-dimensional Su-Schrieffer-Heeger (SSH) chains. The transport time is investigated in both one- and two-dimensional models with topological non-trivial band structures. The fast transport is inherited with the wavefunction localization, giving a stronger effective coupling strength between the mode and the measurement leads. Also the transport time in one-dimension is independent of the system size. To verify the asertion, we implement a chain of split-ring resonators and their complementary ones with controllable hopping strengths. By performing the measurements on the group delay of non-trivially topological edge states with pulse excitations, the transport time between two edge states is directly observed with the chain length up to $20$. Along the route to harness topology to protect optical information, our experimental demonstrations provide a crucial guideline for utilizing photonic topological devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_19237 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fast and length-independent transport time supported by topological edge states in finite-size Su-Schrieffer-Heeger chains Chang, Yu-Han Torres, Nadia Daniela Rivera Manrique, Santiago Figueroa Robles, Raul A. Robles Silalahi, Vanna Chrismas Wu, Cen-Shawn Wang, Gang Marcucci, Giulia Pilozzi, Laura Conti, Claudio Lee, Ray-Kuang Kuo, Watson Optics In order to transport information with topological protection, we explore experimentally the fast transport time using edge states in one-dimensional Su-Schrieffer-Heeger (SSH) chains. The transport time is investigated in both one- and two-dimensional models with topological non-trivial band structures. The fast transport is inherited with the wavefunction localization, giving a stronger effective coupling strength between the mode and the measurement leads. Also the transport time in one-dimension is independent of the system size. To verify the asertion, we implement a chain of split-ring resonators and their complementary ones with controllable hopping strengths. By performing the measurements on the group delay of non-trivially topological edge states with pulse excitations, the transport time between two edge states is directly observed with the chain length up to $20$. Along the route to harness topology to protect optical information, our experimental demonstrations provide a crucial guideline for utilizing photonic topological devices. |
| title | Fast and length-independent transport time supported by topological edge states in finite-size Su-Schrieffer-Heeger chains |
| topic | Optics |
| url | https://arxiv.org/abs/2511.19237 |