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Photonic heat transport in three terminal superconducting circuit

Author

Listed:
  • Azat Gubaydullin

    (Department of Applied Physics, Aalto University School of Science)

  • George Thomas

    (Department of Applied Physics, Aalto University School of Science)

  • Dmitry S. Golubev

    (Department of Applied Physics, Aalto University School of Science)

  • Dmitrii Lvov

    (Department of Applied Physics, Aalto University School of Science)

  • Joonas T. Peltonen

    (Department of Applied Physics, Aalto University School of Science)

  • Jukka P. Pekola

    (Department of Applied Physics, Aalto University School of Science)

Abstract

We report an experimental realization of a three-terminal photonic heat transport device based on a superconducting quantum circuit. The central element of the device is a flux qubit made of a superconducting loop containing three Josephson junctions, which can be tuned by magnetic flux. It is connected to three resonators terminated by resistors. By heating one of the resistors and monitoring the temperatures of the other two, we determine photonic heat currents in the system and demonstrate their tunability by magnetic field at the level of 1 aW. We determine system parameters by performing microwave transmission measurements on a separate nominally identical sample and, in this way, demonstrate clear correlation between the level splitting of the qubit and the heat currents flowing through it. Our experiment is an important step towards realization of heat transistors, heat amplifiers, masers pumped by heat and other quantum heat transport devices.

Suggested Citation

  • Azat Gubaydullin & George Thomas & Dmitry S. Golubev & Dmitrii Lvov & Joonas T. Peltonen & Jukka P. Pekola, 2022. "Photonic heat transport in three terminal superconducting circuit," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29078-x
    DOI: 10.1038/s41467-022-29078-x
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    References listed on IDEAS

    as
    1. Kuan Yen Tan & Matti Partanen & Russell E. Lake & Joonas Govenius & Shumpei Masuda & Mikko Möttönen, 2017. "Quantum-circuit refrigerator," Nature Communications, Nature, vol. 8(1), pages 1-8, August.
    2. Matthias Meschke & Wiebke Guichard & Jukka P. Pekola, 2006. "Single-mode heat conduction by photons," Nature, Nature, vol. 444(7116), pages 187-190, November.
    3. Francesco Giazotto & María José Martínez-Pérez, 2012. "The Josephson heat interferometer," Nature, Nature, vol. 492(7429), pages 401-405, December.
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