Quantum reservoir computing for photonic entanglement witnessing
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arXiv
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| Autori principali: | , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866917152154451968 |
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| author | Zia, Danilo Innocenti, Luca Minati, Giorgio Lorenzo, Salvatore Suprano, Alessia Di Bartolo, Rosario Spagnolo, Nicolò Giordani, Taira Cimini, Valeria Palma, G. Massimo Ferraro, Alessandro Sciarrino, Fabio Paternostro, Mauro |
| author_facet | Zia, Danilo Innocenti, Luca Minati, Giorgio Lorenzo, Salvatore Suprano, Alessia Di Bartolo, Rosario Spagnolo, Nicolò Giordani, Taira Cimini, Valeria Palma, G. Massimo Ferraro, Alessandro Sciarrino, Fabio Paternostro, Mauro |
| contents | Accurately estimating properties of quantum states, such as entanglement, while essential for the development of quantum technologies, remains a challenging task. Standard approaches to property estimation rely on detailed modeling of the measurement apparatus and a priori assumptions on their working principles. Even small deviations can greatly affect reconstruction accuracy and prediction reliability. Here, we demonstrate that quantum reservoir computing embodies a powerful alternative for witnessing quantum entanglement and, more generally, estimating quantum features from experimental data. We leverage the orbital angular momentum of photon pairs as an ancillary degree of freedom to enable informationally complete single-setting measurements of their polarization. Our approach does not require fine-tuning or refined knowledge of the setup, at the same time outperforming conventional approaches. It automatically adapts to noise and imperfections while avoiding overfitting, ensuring robust reconstruction of entanglement witnesses and paving the way to the assessment of quantum features of experimental multiparty states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_18361 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum reservoir computing for photonic entanglement witnessing Zia, Danilo Innocenti, Luca Minati, Giorgio Lorenzo, Salvatore Suprano, Alessia Di Bartolo, Rosario Spagnolo, Nicolò Giordani, Taira Cimini, Valeria Palma, G. Massimo Ferraro, Alessandro Sciarrino, Fabio Paternostro, Mauro Quantum Physics Accurately estimating properties of quantum states, such as entanglement, while essential for the development of quantum technologies, remains a challenging task. Standard approaches to property estimation rely on detailed modeling of the measurement apparatus and a priori assumptions on their working principles. Even small deviations can greatly affect reconstruction accuracy and prediction reliability. Here, we demonstrate that quantum reservoir computing embodies a powerful alternative for witnessing quantum entanglement and, more generally, estimating quantum features from experimental data. We leverage the orbital angular momentum of photon pairs as an ancillary degree of freedom to enable informationally complete single-setting measurements of their polarization. Our approach does not require fine-tuning or refined knowledge of the setup, at the same time outperforming conventional approaches. It automatically adapts to noise and imperfections while avoiding overfitting, ensuring robust reconstruction of entanglement witnesses and paving the way to the assessment of quantum features of experimental multiparty states. |
| title | Quantum reservoir computing for photonic entanglement witnessing |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2502.18361 |