Experimental quantum randomness enhanced by a quantum network
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arXiv
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| Format: | Preprint |
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2024
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| author | Polino, Emanuele Villegas-Aguilar, Luis Poderini, Davide Walk, Nathan Ghafari, Farzad Quintino, Marco Túlio Lyasota, Alexey Rogge, Sven Chaves, Rafael Pryde, Geoff J. Cavalcanti, Eric G. Tischler, Nora Slussarenko, Sergei |
| author_facet | Polino, Emanuele Villegas-Aguilar, Luis Poderini, Davide Walk, Nathan Ghafari, Farzad Quintino, Marco Túlio Lyasota, Alexey Rogge, Sven Chaves, Rafael Pryde, Geoff J. Cavalcanti, Eric G. Tischler, Nora Slussarenko, Sergei |
| contents | The certification of randomness is essential for both fundamental science and information technologies. Unlike traditional random number generators, randomness obtained from nonlocal correlations is fundamentally guaranteed to be unpredictable. However, it is also highly susceptible to noise. Here, we show that extending the conventional bipartite Bell scenario to hybrid quantum networks -- which incorporate both quantum channels and entanglement sources -- enhances the robustness of certifiable randomness. Our protocol even enables randomness to be certified from Bell-local states, broadening the range of quantum states useful for this task. Through both theoretical analysis and experimental validation in a photonic network, we demonstrate enhanced performance and improved noise resilience. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_16973 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Experimental quantum randomness enhanced by a quantum network Polino, Emanuele Villegas-Aguilar, Luis Poderini, Davide Walk, Nathan Ghafari, Farzad Quintino, Marco Túlio Lyasota, Alexey Rogge, Sven Chaves, Rafael Pryde, Geoff J. Cavalcanti, Eric G. Tischler, Nora Slussarenko, Sergei Quantum Physics The certification of randomness is essential for both fundamental science and information technologies. Unlike traditional random number generators, randomness obtained from nonlocal correlations is fundamentally guaranteed to be unpredictable. However, it is also highly susceptible to noise. Here, we show that extending the conventional bipartite Bell scenario to hybrid quantum networks -- which incorporate both quantum channels and entanglement sources -- enhances the robustness of certifiable randomness. Our protocol even enables randomness to be certified from Bell-local states, broadening the range of quantum states useful for this task. Through both theoretical analysis and experimental validation in a photonic network, we demonstrate enhanced performance and improved noise resilience. |
| title | Experimental quantum randomness enhanced by a quantum network |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2412.16973 |