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Showing 1–5 of 5 results
Advanced filters: Author: Vittorio Cataudella Clear advanced filters

  • Photo-excitation in strongly correlated materials is usually modelled as an increase of electronic energy that is then transferred to other degrees of freedom. Contrarily, Novelli et al.show that in a charge-transfer insulator, sub-gap excitation forms electrons that are suddenly dressed by the boson field.

    • Fabio Novelli
    • Giulio De Filippis
    • Daniele Fausti
    Research
    Nature Communications
    Volume: 5, P: 1-8

  • Topological phases play a fundamental role in a variety of physical systems, yet there is a lack of efficient tools for revealing the occurrence of associated quantum transitions. Here, Cardano et al.report that such transitions can be identified in the statistics of quantum-walk dynamics and validate this idea in a photonic experimental implementation.

    • Filippo Cardano
    • Maria Maffei
    • Lorenzo Marrucci
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-8

  • The detection of topological invariants in the bulk remains challenging even in state-of-the-art experiments. Here, Cardanoet al. propose a method to read-out the Zak phases and topological invariants in one-dimensional chiral systems and detect those in a photonic quantum walk of twisted photons.

    • Filippo Cardano
    • Alessio D’Errico
    • Pietro Massignan
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • Dynamical quantum phase transitions can be observed when time is treated as a control parameter in non-equilibrium quantum systems. The authors show that quenching the qubits-oscillator coupling in a dissipative two-qubit system leads to different transitions depending on interactions and entanglement, with promising applications in quantum sensing and metrology.

    • Grazia Di Bello
    • Andrea Ponticelli
    • Carmine Antonio Perroni
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-11