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Showing 1–13 of 13 results
Advanced filters: Author: Dmitry Golubev Clear advanced filters

  • Josephson junctions are used for SQUIDs, voltage standards, and superconducting qubits. These applications are located at one corner of the device parameter space. Here, the authors shed light on the other corner and show the quantized current of Josephson junctions — dual to the quantized voltage.

    • Rais S. Shaikhaidarov
    • Kyung Ho Kim
    • Oleg V. Astafiev
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-6

  • Direct observation of the physical dual a.c. Josephson effect, a series of quantized current steps in a superconducting nanowire, is reported and may offer a way to establish new metrological standards for currents.

    • Rais S. Shaikhaidarov
    • Kyung Ho Kim
    • Oleg V. Astafiev
    Research
    Nature
    Volume: 608, P: 45-49

  • Quantum devices exhibiting non-reciprocal behaviour have been attracting attention for fundamental studies and applications. Here the authors report a microwave quantum diode based on a superconducting flux qubit coupled to two resonators, which has the advantage of compactness and scalability.

    • Rishabh Upadhyay
    • Dmitry S. Golubev
    • Jukka P. Pekola
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • The predicted dissipative quantum phase transition in a Josephson junction coupled to resistive environment has been examined in recent experiments. In a heat transport experiment, Subero et al. show that the junction acts as an inductor at high frequencies, while DC charge transport confirms insulating behaviour.

    • Diego Subero
    • Olivier Maillet
    • Jukka P. Pekola
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Quantum heat transport devices are currently intensively studied. Here, the authors report the photonic heat transport modulated by superconducting qubit in a three-terminal device. Flux dependent heat power correlates with microwave measurements.

    • Azat Gubaydullin
    • George Thomas
    • Jukka P. Pekola
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-10

  • Quantum heat transport may be realized in superconducting circuits which has to rely on magnetic flux as a sole control parameter. Here, the authors report electric field tuning of photonic thermal conductance and observe heat flow oscillations in a magnetic field-free superconducting circuit.

    • Olivier Maillet
    • Diego Subero
    • Jukka P. Pekola
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-6

  • Proximity effect may induce unconventional superconductivity in the topologically protected surface states of a topological insulator, however experimental evidence remains rare. Here, Charpentier et al. report proximity effect induced superconductivity in nanoscale Josephson junctions and suggest an unconventional p-wave order parameter.

    • Sophie Charpentier
    • Luca Galletti
    • Floriana Lombardi
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • Luminescence is engineered in whole plants, without an exogenous substrate, using a fungal gene cluster.

    • Tatiana Mitiouchkina
    • Alexander S. Mishin
    • Karen S. Sarkisyan
    Research
    Nature Biotechnology
    Volume: 38, P: 944-946

  • Hybrid single-electron turnstiles are candidates as a standard for the ampere expressing it with elegant simplicity. Yet, such devices may serve as a standard for the watt with similar elegance and simplicity.

    • Marco Marín-Suárez
    • Joonas T. Peltonen
    • Jukka P. Pekola
    Research
    Nature Nanotechnology
    Volume: 17, P: 239-243

  • According to a recent theoretical model, Majorana bound states can induce a parity protected superconducting diode effect. Here, we fabricate an array of Nb islands on an intrinsic topological insulator, i.e., a system where Majorana bound states are expected, and observe a strong superconducting diode effect, as well as a superconducting analogue of the optical diffraction grating.

    • Xiangyu Song
    • Soorya Suresh Babu
    • Alexey Bezryadin
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-11