Feasibility study of frequency-encoded photonic qubits over a free-space channel
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866917862620266496 |
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| author | Vinet, Stéphane Wu, Wilson Zhang, Yujie Jennewein, Thomas |
| author_facet | Vinet, Stéphane Wu, Wilson Zhang, Yujie Jennewein, Thomas |
| contents | Frequency-bin quantum encoding shows great promise for quantum communication given its high-dimensional scaling, compatibility with photonic integrated circuits and synergy with classical optical communication technology. However, to date all demonstrations have been performed over single-mode and static channels, while the transmission over fluctuating and turbulent channels has not been addressed. We propose and demonstrate a novel approach that leverages field-widened interferometers to decode frequency-bins transmitted over free-space channels without any adaptive optics or modal filtering. Moreover, we investigate the phase stability requirements so that frequency-bin encoding could be feasible for satellite to ground quantum links. Our passive approach expands the versatility of frequency-bin encoding, paving the way towards long-range and fluctuating channels. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_06104 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Feasibility study of frequency-encoded photonic qubits over a free-space channel Vinet, Stéphane Wu, Wilson Zhang, Yujie Jennewein, Thomas Quantum Physics Frequency-bin quantum encoding shows great promise for quantum communication given its high-dimensional scaling, compatibility with photonic integrated circuits and synergy with classical optical communication technology. However, to date all demonstrations have been performed over single-mode and static channels, while the transmission over fluctuating and turbulent channels has not been addressed. We propose and demonstrate a novel approach that leverages field-widened interferometers to decode frequency-bins transmitted over free-space channels without any adaptive optics or modal filtering. Moreover, we investigate the phase stability requirements so that frequency-bin encoding could be feasible for satellite to ground quantum links. Our passive approach expands the versatility of frequency-bin encoding, paving the way towards long-range and fluctuating channels. |
| title | Feasibility study of frequency-encoded photonic qubits over a free-space channel |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2412.06104 |