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Showing 1–6 of 6 results
Advanced filters: Author: Michał Karpiński Clear advanced filters

  • The successful realization of quantum information protocols relies on characterization of quantum states and measurements. Here, Cooper et al.experimentally demonstrate a technique enabling calibration of a detector with a sizeable number of outcomes using a limited amount of resources.

    • Merlin Cooper
    • Michał Karpiński
    • Brian J. Smith
    ResearchOpen Access
    Nature Communications
    Volume: 5, P: 1-6

  • Quantum mechanics dictates that the interference pattern cast by particles after passing through a double slit depends on how much information it is possible to know about which slit they went through. Banaszek et al. show how this behaviour extends to a system’s internal degrees of freedom.

    • Konrad Banaszek
    • Paweł Horodecki
    • Czesław Radzewicz
    ResearchOpen Access
    Nature Communications
    Volume: 4, P: 1-7

  • By employing electro-optic phase modulation, a time-lens imaging system is demonstrated for single-photon pulses. Such a system achieves wavelength-preserving sixfold bandwidth compression of single-photon states in the near-infrared spectral region.

    • Michał Karpiński
    • Michał Jachura
    • Brian J. Smith
    Research
    Nature Photonics
    Volume: 11, P: 53-57

  • To bridge the ultrafast and slow classes of quantum-information-processing systems, a Fresnel time lens is developed by using a wideband electro-optic phase modulator combined with a dispersion element. The single-photon spectral bandwidth is compressed from picosecond to nanosecond timescales.

    • Filip Sośnicki
    • Michał Mikołajczyk
    • Michał Karpiński
    Research
    Nature Photonics
    Volume: 17, P: 761-766

  • High-amplitude optical phase modulation has been challenging to achieve in nanophotonic integrated structures. Coherently combining multiple optomechanical modulators on a nanophotonic chip offers an approach to address this challenge.

    • Michał Karpiński
    News & Views
    Nature Photonics
    Volume: 13, P: 306-308