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Showing 1–15 of 15 results
Advanced filters: Author: Gonzalo Carvacho Clear advanced filters

  • Bell’s theorem has important implications for quantum information processing. Here the authors experimentally investigate the violation of a Bell-like inequality in the case of distant parties whose correlations are mediated by independent sources, a realistic feature in future quantum networks.

    • Gonzalo Carvacho
    • Francesco Andreoli
    • Fabio Sciarrino
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-6

  • While several advancements have been made in the use of on-demand solid-state quantum emitters for quantum communication, using them to realise a quantum relay among remote parties had not been realised so far. Here, the authors fill this gap by realising all-photonic quantum state teleportation with photons generated by distinct remote quantum dots.

    • Alessandro Laneve
    • Giuseppe Ronco
    • Rinaldo Trotta
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-9

  • Extending quantum photonics’ capabilities from simple linear-optics-based schemes to universal quantum computing presents several challenges, but intermediate regimes with some degree of adaptivity might already bring practical advantages. Here, the authors experimentally emulate an adaptive Boson Sampling scheme using post-selection, and apply it to a data classification task.

    • Francesco Hoch
    • Eugenio Caruccio
    • Fabio Sciarrino
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-11

  • A quantum-to-quantum Bernoulli factory is demonstrated by using a reconfigurable Clements’s squared unitary circuit in an integrated quantum photonic platform. Three interferometer designs are proposed for the basic operations of a field on qubit states.

    • Francesco Hoch
    • Taira Giordani
    • Fabio Sciarrino
    ResearchOpen Access
    Nature Photonics
    Volume: 19, P: 12-19

  • Multi-client demonstrations of blind quantum computation are still missing, due to their high resource overhead. Here, the authors fill this gap, by proposing a more scalable solution based on a recently introduced linear quantum network structure with high modularity, and demonstrating it in the two-client case.

    • Beatrice Polacchi
    • Dominik Leichtle
    • Elham Kashefi
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • The triangle causal structure represents a departure from the usual Bell scenario, as it should allow to violate classical predictions without the need for external inputs setting the measurement bases. Here the authors realise this scenario using a photonic setup with three independent photon sources.

    • Emanuele Polino
    • Davide Poderini
    • Fabio Sciarrino
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-13

  • New types of nonlocal correlations can arise in quantum networks, but experiments have not been done for more than two independent sources. Here, the authors violate a chained n-locality inequality in a network with five nodes and four independent sources, relying only on single-qubit measurements.

    • Davide Poderini
    • Iris Agresti
    • Fabio Sciarrino
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Theory and experiment show that quantum correlations violate the instrumental test—a common statistical method used to estimate the strength of causal relationships between two variables.

    • Rafael Chaves
    • Gonzalo Carvacho
    • Fabio Sciarrino
    Research
    Nature Physics
    Volume: 14, P: 291-296

  • Random number generation has applications spanning several sectors, from scientific research to cryptography, with the intrinsic random nature of quantum physics allows to obtain truly random sequences. The authors present a proof-of principle implementation of a device-independent random number generator protocol, whose effectiveness is certified by quantum instrumental correlations, which also ensures privacy with respect to any quantum adversarial attack.

    • Iris Agresti
    • Davide Poderini
    • Fabio Sciarrino
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-7