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Showing 1–3 of 3 results
Advanced filters: Author: Shruti Dogra Clear advanced filters

  • Interaction-free measurements typically use repeated interrogations of an object that suppress the coherent evolution of the system. Dogra et al. demonstrate in a superconducting circuit a novel protocol that employs coherent repeated interrogations, and show that it yields a higher detection probability.

    • Shruti Dogra
    • John J. McCord
    • Gheorghe Sorin Paraoanu
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • In quantum physics, observables are generally believed to be Hermitian, but there are several examples of non-Hermitian systems possessing real positive eigenvalues, particularly among open systems. Here, the authors simulate the evolution of a non-Hermitian Hamiltonian on a superconducting quantum processor using a dilation procedure involving an ancillary qubit, and observe the parity–time (PT)-symmetry breaking phase transition at the exceptional points.

    • Shruti Dogra
    • Artem A. Melnikov
    • Gheorghe Sorin Paraoanu
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-8