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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.22840 |
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| _version_ | 1866918253825097728 |
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| author | Liu, Yan Xiang, Qing-Ao Yang, Xin-Yuan Yuan, Ji-Bing Tang, Shi-Qing Wang, Xin-Wen Song, Ya-Ju |
| author_facet | Liu, Yan Xiang, Qing-Ao Yang, Xin-Yuan Yuan, Ji-Bing Tang, Shi-Qing Wang, Xin-Wen Song, Ya-Ju |
| contents | Precise control of a single photon transport in broadband, multi-mode waveguides is a fundamental challenge for scalable quantum networks. We propose a theoretical scheme for on-demand control of single-photon scattering using a driven $Λ$-type emitter coupled to a rectangular waveguide. By employing the Lippmann-Schwinger formalism, we derive the exact analytical scattering matrix and reveal two key interference mechanisms: electromagnetically induced transparency for complete transmission and Fano resonance for complete reflection. We demonstrate that the single-photon scattering is dynamically engineered by the driving field, enabling a switch between complete transmission and dual-frequency complete reflection. Crucially, in the multi-mode regime, we show that the scattering is governed by quantum interference between modes, making it critically dependent on the input photonic state. By preparing the photon in a specific coherent superposition state, the multi-mode interference is harnessed to achieve Fano resonance-mediated complete reflection. Conversely, a single-mode input suppresses complete reflection. This input-state-dependent scattering establishes a general framework for multi-mode quantum photonics, paving the way for broadband dual-frequency filters, multi-mode quantum routers, and on-chip spectrometers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_22840 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On-Demand Control of Input-State-Dependent Single-Photon Scattering in Multi-Mode Waveguides Liu, Yan Xiang, Qing-Ao Yang, Xin-Yuan Yuan, Ji-Bing Tang, Shi-Qing Wang, Xin-Wen Song, Ya-Ju Quantum Physics Precise control of a single photon transport in broadband, multi-mode waveguides is a fundamental challenge for scalable quantum networks. We propose a theoretical scheme for on-demand control of single-photon scattering using a driven $Λ$-type emitter coupled to a rectangular waveguide. By employing the Lippmann-Schwinger formalism, we derive the exact analytical scattering matrix and reveal two key interference mechanisms: electromagnetically induced transparency for complete transmission and Fano resonance for complete reflection. We demonstrate that the single-photon scattering is dynamically engineered by the driving field, enabling a switch between complete transmission and dual-frequency complete reflection. Crucially, in the multi-mode regime, we show that the scattering is governed by quantum interference between modes, making it critically dependent on the input photonic state. By preparing the photon in a specific coherent superposition state, the multi-mode interference is harnessed to achieve Fano resonance-mediated complete reflection. Conversely, a single-mode input suppresses complete reflection. This input-state-dependent scattering establishes a general framework for multi-mode quantum photonics, paving the way for broadband dual-frequency filters, multi-mode quantum routers, and on-chip spectrometers. |
| title | On-Demand Control of Input-State-Dependent Single-Photon Scattering in Multi-Mode Waveguides |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.22840 |