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Showing 1–7 of 7 results
Advanced filters: Author: Bayan Karimi Clear advanced filters

  • The authors demonstrate a simple direct-current-measurement characterization of a quarter-wavelength superconducting coplanar waveguide resonator using an on-chip bolometer. This approach offers simpler experimental instrumentation and much larger frequency range of operation compared to traditional RF techniques.

    • Christoforus Dimas Satrya
    • Yu-Cheng Chang
    • Jukka P. Pekola
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-7

  • An on-chip nano-bolometer integrated with a Josephson junction quantitatively measures the Josephson radiation up to about 100 GHz frequency. This wide-band, thermal detection scheme of microwave photons provides a sensitive detector of Josephson dynamics beyond the standard conductance measurements.

    • Bayan Karimi
    • Gorm Ole Steffensen
    • Jukka P. Pekola
    ResearchOpen Access
    Nature Nanotechnology
    Volume: 19, P: 1613-1618

  • A real qubit is not an isolated unitary quantum system but is subject to noise from its environment. An experiment has now turned this interaction on its head, controlling the environment using the qubit itself.

    • Bayan Karimi
    • Jukka P. Pekola
    News & Views
    Nature Physics
    Volume: 19, P: 1236-1237

  • Quantum calorimeters can provide time-resolved measurement of single photons by converting them to detectable temperature changes. Here the authors demonstrate a calorimeter that reaches the lower bound of temperature resolution, determined by the coupling to its heat bath and associated fluctuations.

    • Bayan Karimi
    • Fredrik Brange
    • Jukka P. Pekola
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-6

  • The state of a superconducting circuit qubit governs the photonic heat flow through an integrated assembly, constituting a quantum heat valve that provides a testbed for exploring quantum thermodynamics in a circuit quantum electrodynamics setting.

    • Alberto Ronzani
    • Bayan Karimi
    • Jukka P. Pekola
    Research
    Nature Physics
    Volume: 14, P: 991-995

  • 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

  • Heat transport control in superconducting circuits has received increasing attention in microwave engineering for circuit quantum electrodynamics, particularly in light of quantum computing. The authors realise of a quantum heat rectifier, a thermal equivalent to the electronic diode, experimentally realising a spin-boson rectifier proposed theoretically.

    • Jorden Senior
    • Azat Gubaydullin
    • Jukka P. Pekola
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-5