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Showing 1–15 of 15 results
Advanced filters: Author: Rüdiger Schott Clear advanced filters

  • The performance of perovskite solar cells has improved dramatically over just a few years but our understanding of how they work is incomplete. Bergmann et al.use Kelvin probe force microscopy to map the electric potential in these cells to show that an accumulation of holes could limit this performance.

    • Victor W. Bergmann
    • Stefan A. L. Weber
    • Rüdiger Berger
    Research
    Nature Communications
    Volume: 5, P: 1-9

  • Spin–photon interfaces provide a connection between quantum information stored in atomic or electronic spins and optical communications networks. A quantum photon emitter with long-lived, controllable coherent spin has now been demonstrated.

    • Mark R. Hogg
    • Nadia O. Antoniadis
    • Richard J. Warburton
    Research
    Nature Physics
    Volume: 21, P: 1475-1481

  • A liquid droplet is shown to slide across a solid surface subject to friction forces analogous with those between two solids. The phenomenon is generic, and closes a gap in our understanding of liquid–solid friction.

    • Nan Gao
    • Florian Geyer
    • Rüdiger Berger
    Research
    Nature Physics
    Volume: 14, P: 191-196

  • High efficiency, coherence and indistinguishability are key requirements for the application of single-photon sources for quantum technologies, but hard to achieve concurrently. A gated quantum dot in an open, tunable microcavity now can create single photons on-demand with an end-to-end efficiency of 57%, preserving coherence over microsecond-long trains of single photons.

    • Natasha Tomm
    • Alisa Javadi
    • Richard John Warburton
    Research
    Nature Nanotechnology
    Volume: 16, P: 399-403

  • Measurements on a single artificial atom—a quantum dot—coupled to an optical cavity show scattering dynamics that depend on the number of photons involved in the light–matter interaction, which is a signature of stimulated emission.

    • Natasha Tomm
    • Sahand Mahmoodian
    • Richard J. Warburton
    ResearchOpen Access
    Nature Physics
    Volume: 19, P: 857-862

  • The authors study Andreev bound states (ABSs) in 3-terminal InAs/Al Josephson-junction devices. They find signatures of hybridization between two ABSs, with band structure tunable by electric currents that generate magnetic fluxes threading superconducting loops in the device.

    • Marco Coraiola
    • Daniel Z. Haxell
    • Fabrizio Nichele
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • The authors study conductance replicas emerging under microwave irradiation in the tunnelling spectrum of Josephson junctions in InAs/Al heterostructures, focusing on distinguishing the signatures of Floquet-Andreev states (FASs) from those of photon-assisted tunneling (PAT). They establish that PAT largely dominates the response to microwave radiation in their device.

    • Daniel Z. Haxell
    • Marco Coraiola
    • Fabrizio Nichele
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Single-shot readout of optically active spin qubits is typically limited by low photon collection rates and measurement back-action. Here the authors overcome these limitations by using an open cavity approach for single-shot readout of a semiconductor quantum dot and demonstrate record readout time of a few ns.

    • Nadia O. Antoniadis
    • Mark R. Hogg
    • Richard J. Warburton
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • Strong coupling between a gated semiconductor quantum dot and an optical microcavity is observed in an ultralow-loss frequency-tunable microcavity device.

    • Daniel Najer
    • Immo Söllner
    • Richard J. Warburton
    Research
    Nature
    Volume: 575, P: 622-627

  • In addition to their function in gene regulation, certain microRNAs can be secreted by cells. Here, the authors show that the microRNA let-7 can cause neurodegeneration by directly activating Toll-like receptor 7 and that individuals with Alzheimer's disease have more let-7b in their cerebrospinal fluid.

    • Sabrina M Lehmann
    • Christina Krüger
    • Seija Lehnardt
    Research
    Nature Neuroscience
    Volume: 15, P: 827-835