DAVIDE PODERINI

PhD Graduate

PhD program:: XXXIII


supervisor: Claudio Conti
advisor: Fabio Sciarrino
co-supervisor: Fabio Sciarrino

Thesis title: Causal Inference in Quantum Technologies

In the realm of quantum information and quantum technologies, the fields of statistical inference play a prominent role. These fundamental tools are critical for the study of physical systems in an inherently statistical theory such as quantum mechanics, two notable examples being quantum state and process tomography. Recently causal inference, i.e. the task of discovering causal relationships from experimental data, started to gain attention from the quantum information community. Indeed it has become clear that causal inference provides an excellent framework for the study of the Bell theorem and its generalizations which represent the cornerstone of many applications in quantum information processing. In this thesis, these topics are explored mostly from an experimental point of view, and both fundamental and applied aspects of classical causal modeling in quantum mechanics are explored. On the fundamental side, the works presented here regard mainly the study of non-classicality of complex networks composed of several independent unobserved variables, whose constraints are characterized by a richer structure than simple causal models, and are relevant for the development of quantum communication between several parties over long distances. In particular, it is presented an implementation of a complex quantum network with star and triangle topologies demonstrating experimentally the violation of non-linear causal constraints. Simpler causal structures, like the prepare and measure scenario, are also analyzed. This structure, in particular, is implemented to demonstrate experimentally the non-classicality of a two-dimensional quantum system, in the context of wave-particle duality. On a more theoretical side, a technique is presented which offers a description of causal constraints as an undirected graph, a method already popular in quantum contextuality, which allows to leverage several results from graph theory to analyze causal scenarios. Finally, concerning cryptographical applications, a proof of principle implementation of a certified randomness generator using the instrumental causal structure is described. In the end, the purpose is to show the power of causal modeling applied to quantum mechanics, both for applications and for the foundations of quantum mechanics.

Research products

11573/1617104 - 2022 - Experimental test of quantum causal influences
Agresti, I.; Poderini, D.; Polacchi, B.; Miklin, N.; Gachechiladze, M.; Suprano, A.; Polino, E.; Milani, G.; Carvacho, G.; Chaves, R.; Sciarrino, F. - 01a Articolo in rivista
paper: SCIENCE ADVANCES (Washington, DC : American Association for the Advancement of Science, 2015-) pp. - - issn: 2375-2548 - wos: WOS:000763313300013 (5) - scopus: 2-s2.0-85125472674 (8)

11573/1646279 - 2022 - Quantum violation of local causality in an urban network using hybrid photonic technologies
Carvacho, Gonzalo; Roccia, Emanuele; Valeri, Mauro; Basset, Francesco Basso; Poderini, Davide; Pardo, Claudio; Polino, Emanuele; Carosini, Lorenzo; Rota, Michele B.; Neuwirth, Julia; Covre Da Silva, Saimon F.; Rastelli, Armando; Spagnolo, Nicolò; Chaves, Rafael; Trotta, Rinaldo; Sciarrino, Fabio - 01a Articolo in rivista
paper: OPTICA (Washington, DC: Optical Society of America, 2014-) pp. 572-578 - issn: 2334-2536 - wos: WOS:000799613700018 (6) - scopus: 2-s2.0-85134702585 (8)

11573/1619960 - 2022 - Ab initio experimental violation of Bell inequalities
Poderini, D.; Polino, E.; Rodari, G.; Suprano, A.; Chaves, R.; Sciarrino, F. - 01a Articolo in rivista
paper: PHYSICAL REVIEW RESEARCH (College Park MD: American Physical Society) pp. - - issn: 2643-1564 - wos: WOS:000766657900006 (8) - scopus: 2-s2.0-85125648342 (11)

11573/1556307 - 2021 - Experimental robust self-testing of the state generated by a quantum network
Agresti, Iris; Polacchi, Beatrice; Poderini, Davide; Polino, Emanuele; Suprano, Alessia; Šupić, Ivan; Bowles, Joseph; Gonzalo, Carvacho; Cavalcanti, Daniel; Sciarrino, Fabio - 01a Articolo in rivista
paper: PRX QUANTUM (Colleg Park MD: American Physical Society) pp. - - issn: 2691-3399 - wos: WOS:000674761700001 (17) - scopus: 2-s2.0-85113570408 (13)

11573/1540874 - 2021 - Quantum key distribution with entangled photons generated on demand by a quantum dot
Basso Basset, F.; Valeri, M.; Roccia, E.; Muredda, V.; Poderini, D.; Neuwirth, J.; Spagnolo, N.; Rota, M. B.; Carvacho Vera, G.; Sciarrino, F.; Trotta, R. - 01a Articolo in rivista
paper: SCIENCE ADVANCES (Washington, DC : American Association for the Advancement of Science, 2015-) pp. - - issn: 2375-2548 - wos: WOS:000633443000020 (74) - scopus: 2-s2.0-85103230653 (69)

11573/1619982 - 2021 - Causal Networks and Freedom of Choice in Bell's Theorem
Chaves, R; Moreno, G; Polino, E; Poderini, D; Agresti, I; Suprano, A; Barros, Mr; Carvacho, G; Wolfe, E; Canabarro, A; Spekkens, Rw; Sciarrino, F - 01a Articolo in rivista
paper: PRX QUANTUM (Colleg Park MD: American Physical Society) pp. - - issn: 2691-3399 - wos: WOS:000717477400001 (18) - scopus: 2-s2.0-85121768278 (19)

11573/1340272 - 2020 - Experimental device-independent certified randomness generation with an instrumental causal structure
Agresti, Iris; Poderini, Davide; Guerini, Leonardo; Mancusi, Michele; Gonzalo, Carvacho; Aolita, Leandro; Cavalcanti, Daniel; Chaves Souto Araujo, Rafael; Sciarrino, Fabio - 01a Articolo in rivista

11573/1412083 - 2020 - Experimental violation of n-locality in a star quantum network
Poderini, D.; Agresti, I.; Marchese, G.; Polino, E.; Giordani, T.; Suprano, A.; Valeri, M.; Milani, G.; Spagnolo, N.; Carvacho, G.; Chaves, R.; Sciarrino, F. - 01a Articolo in rivista
paper: NATURE COMMUNICATIONS (London: Nature Publishing Group) pp. - - issn: 2041-1723 - wos: WOS:000536698500010 (32) - scopus: 2-s2.0-85084911170 (40)

11573/1478731 - 2020 - Experimental adaptive Bayesian estimation of multiple phases with limited data
Valeri, M.; Polino, E.; Poderini, D.; Gianani, I.; Corrielli, G.; Crespi, A.; Osellame, R.; Spagnolo, N.; Sciarrino, F. - 01a Articolo in rivista
paper: NPJ QUANTUM INFORMATION (London : Nature Partner Journals) pp. - - issn: 2056-6387 - wos: WOS:000595367300001 (28) - scopus: 2-s2.0-85097016465 (24)

11573/1336726 - 2019 - Experimental connection between the instrumental and Bell inequalities
Agresti, Iris; Carvacho, Gonzalo; Poderini, Davide; Aolita, Leandro; Chaves, Rafael; Sciarrino, Fabio - 04c Atto di convegno in rivista
paper: PROCEEDINGS (Basel : MDPI AG, 2017-) pp. - - issn: 2504-3900 - wos: (0) - scopus: (0)
conference: 11th Italian Quantum Information Science conference (Catania; Italy)

11573/1282086 - 2019 - Experimental semi-device-independent tests of quantum channels
Agresti, Iris; Poderini, Davide; Carvacho, Gonzalo; Sarra, Leopoldo; Chaves, Rafael; Buscemi, Francesco; Dall’Arno, Michele; Sciarrino, Fabio - 01a Articolo in rivista
paper: QUANTUM SCIENCE AND TECHNOLOGY (Bristol : IOP Publishing) pp. - - issn: 2058-9565 - wos: WOS:000468905000001 (5) - scopus: 2-s2.0-85066434907 (6)

11573/1336682 - 2019 - Exclusivity graph approach to Instrumental inequalities
Poderini, D.; Chaves, R.; Agresti, I.; Carvacho, G.; Sciarrino, F. - 04b Atto di convegno in volume
conference: 35th Conference on Uncertainty in Artificial Intelligence, UAI 2019 (Tel Aviv; Israel)
book: 35th Conference on Uncertainty in Artificial Intelligence, UAI 2019 - ()

11573/1336686 - 2019 - Device-independent test of a delayed choice experiment
Polino, E.; Agresti, Iris; Poderini, Davide; Carvacho, G.; Milani, G.; Lemos, G. B.; Chaves, R.; Sciarrino, F. - 01a Articolo in rivista
paper: PHYSICAL REVIEW A (College Park, MD : American Physical Society, 2016-) pp. - - issn: 2469-9926 - wos: WOS:000480387400001 (16) - scopus: 2-s2.0-85070900219 (17)

11573/1282880 - 2019 - Experimental learning of quantum states
Rocchetto, A.; Aaronson, S.; Severini, S.; Carvacho, G.; Poderini, D.; Agresti, I.; Bentivegna, M.; Sciarrino, F. - 01a Articolo in rivista
paper: SCIENCE ADVANCES (Washington, DC : American Association for the Advancement of Science, 2015-) pp. - - issn: 2375-2548 - wos: WOS:000473577800002 (46) - scopus: 2-s2.0-85064083893 (45)

11573/1339858 - 2019 - Experimental learning of quantum states
Rocchetto, Andrea; Aaronson, Scott; Severini, Simone; Carvacho, Gonzalo; Poderini, Davide; Agresti, Iris; Bentivegna, Marco; Sciarrino, Fabio - 04f Poster
conference: Quantum Information and Measurement (QIM) V: Quantum Technologies (Rome, Italy)
book: Quantum Information and Measurement (QIM) V: Quantum Technologies - (978-1-943580-56-9)

11573/1336707 - 2017 - Integrated-optics circuits for validation of non-classicality
Crespi, A; Bentivegna, M; Pitsios, I; Rusca, D; Poderini, D; Carvacho, G; D'ambrosio, V; Cabello, A; Sciarrino, F; Osellame, R - 04b Atto di convegno in volume
conference: European Quantum Electronics Conference (Munich, Germany)
book: European Quantum Electronics Conference 2017 - ()

11573/1019518 - 2017 - Single-Photon Quantum Contextuality on a Chip
Crespi, Andrea; Bentivegna, Marco; Pitsios, Ioannis; Rusca, Davide; Poderini, Davide; Carvacho, Gonzalo; D’Ambrosio, Vincenzo; Cabello, Adán; Sciarrino, Fabio; Osellame, Roberto - 01a Articolo in rivista
paper: ACS PHOTONICS (Washington, DC : ACS-American Chemical Society) pp. 2807-2812 - issn: 2330-4022 - wos: WOS:000415786300023 (15) - scopus: 2-s2.0-85034456702 (17)

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