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Showing 1–15 of 15 results
Advanced filters: Author: Anna Josephson Clear advanced filters

  • The optical nature of exciton-polaritons enables new types of devices that leverage coherent quantum effects. Here the authors demonstrate a ring-shaped Josephson junction on a solid-state exciton-polariton platform, addressing challenges in generating polariton currents and providing optical access to the quantum phase. This advancement brings new possibilities for integrating the Josephson effect into photonic circuitry.

    • Nina Voronova
    • Anna Grudinina
    • Dario Ballarini
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Superconducting computing promises enhanced computational power, but scalable and fast superconducting memories are still not implemented. Here, the authors demonstrate a superconducting memory cell based on hysteretic phase-slip transition, without degradation up to ~1 K over several days.

    • Nadia Ligato
    • Elia Strambini
    • Francesco Giazotto
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8

  • Josephson junctions, essential for qubits in quantum computing, require improved NbN growth processes. Here, the authors employ plasma-assisted molecular beam epitaxy under indium-rich conditions to enhance the structural and electrical quality of cubic δ-NbN on GaN substrates, achieving high critical current densities and enabling integration with III-N compounds.

    • Artur Lachowski
    • Paweł Wolny
    • Czesław Skierbiszewski
    ResearchOpen Access
    Communications Materials
    Volume: 6, P: 1-8

  • Topological superconductors hosting Majorana zero modes are of great interest for both fundamental physics and potential quantum computing applications. Here, the intrinsic and Josephson junction transport properties of magnetic topological insulator MnBi2Te4 are investigated, revealing superconducting interference patterns that suggest the presence of supercurrent through quasi-helical edge states.

    • Thies Jansen
    • Ekaterina Kochetkova
    • Chuan Li
    ResearchOpen Access
    Communications Materials
    Volume: 5, P: 1-9

  • Monolithically integrated superconducting single-photon detectors and Josephson junctions can be used to create superconducting optoelectronic synapses with analogue weighting and temporal leaky integration of single-photon presynaptic signals

    • Saeed Khan
    • Bryce A. Primavera
    • Jeffrey M. Shainline
    Research
    Nature Electronics
    Volume: 5, P: 650-659

  • Solid-state devices that mimic biological motors can be built using magnetic flux quanta, or vortices. A new proposal describes how to transfer energy between two interacting vortex systems in a superconductor without having to physically 'sculpt' the host material.

    • Gianfranco D'Anna
    News & Views
    Nature Materials
    Volume: 1, P: 143-144

  • Studies of supercurrent phenomena, such as superconductivity and superfluidity, are usually restricted to cryogenic temperatures, but evidence suggests that a magnon supercurrent can be excited in a Bose–Einstein magnon condensate at room temperature.

    • Dmytro A. Bozhko
    • Alexander A. Serga
    • Burkard Hillebrands
    Research
    Nature Physics
    Volume: 12, P: 1057-1062

  • Radio frequency signal processing (RFSP) currently involves a mix of components with differing operation principles, which hinders miniaturisation. Here, Hackett et al. succeed in creating acoustic non-reciprocal circulators, amplifiers, and passive filters, paving the way for all acoustic single-chip RFSP.

    • Lisa Hackett
    • Michael Miller
    • Matt Eichenfield
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-11

  • Inertial dynamics are observed in a ferromagnet. Specifically, a nutation is seen on top of the usual spin precession that has a lifetime on the order of 10 picoseconds.

    • Kumar Neeraj
    • Nilesh Awari
    • Stefano Bonetti
    Research
    Nature Physics
    Volume: 17, P: 245-250

  • Recent phone survey data from Ethiopia, Malawi, Nigeria and Uganda reveals the breadth of the socioeconomic impacts of the COVID-19 pandemic on individuals and households.

    • Anna Josephson
    • Talip Kilic
    • Jeffrey D. Michler
    Research
    Nature Human Behaviour
    Volume: 5, P: 557-565