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Showing 1–3 of 3 results
Advanced filters: Author: Vitus Händchen Clear advanced filters

  • Recent theory predicts that Einstein–Podolsky–Rosen arguments enable an effect in which one party can steer the other but not the converse. Researchers have now demonstrated this one-way steering effect with two entangled Gaussian modes of light, potentially opening up a new field of applications in quantum information.

    • Vitus Händchen
    • Tobias Eberle
    • Roman Schnabel
    Research
    Nature Photonics
    Volume: 6, P: 596-599

  • Using squeezed states of light combined with a real-time Bayesian adaptive estimation algorithm, deterministic phase estimation with a precision beyond the quantum shot noise limit is demonstrated without any prior knowledge of the phase's value.

    • Adriano A. Berni
    • Tobias Gehring
    • Ulrik L. Andersen
    Research
    Nature Photonics
    Volume: 9, P: 577-581

  • When quantum key distribution is composed with other secure protocols the overall security has to be guaranteed, which adds further security requirements. Here, the authors demonstrate continuous-variable quantum key distribution with composable security and one-sided-device independence.

    • Tobias Gehring
    • Vitus Händchen
    • Roman Schnabel
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7