Publikation: Calorimetry of a phase slip in a Josephson junction
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Datum
2023
Autor:innen
Gümüs, Efe
Majidi, Danial
Nikolić, Danilo
Raif, Patrick
Karimi, Bayan
Peltonen, Joonas T.
Pekola, Jukka P.
Courtois, Hervé
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Nature Physics. Springer Nature. 2023, 19, pp. 196-200. ISSN 1745-2473. eISSN 1745-2481. Available under: doi: 10.1038/s41567-022-01844-0
Zusammenfassung
Josephson junctions are a central element in superconducting quantum technology; in these devices, irreversibility arises from abrupt slips of the quantum phase difference across the junction. This phase slip is often visualized as the tunnelling of a flux quantum in the transverse direction to the superconducting weak link, which produces dissipation. Here we detect the instantaneous heat release caused by a phase slip in a Josephson junction, signalled by an abrupt increase in the local electronic temperature in the weak link and subsequent relaxation back to equilibrium. Beyond the advance in experimental quantum thermodynamics of observing heat in an elementary quantum process, our approach could allow experimentally investigating the ubiquity of dissipation in quantum devices, particularly in superconducting quantum sensors and qubits.
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530 Physik
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Superconducting devices, Josephson junction, phase slip, quantum devices
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GÜMÜS, Efe, Danial MAJIDI, Danilo NIKOLIĆ, Patrick RAIF, Bayan KARIMI, Joonas T. PELTONEN, Elke SCHEER, Jukka P. PEKOLA, Hervé COURTOIS, Wolfgang BELZIG, Clemens B. WINKELMANN, 2023. Calorimetry of a phase slip in a Josephson junction. In: Nature Physics. Springer Nature. 2023, 19, pp. 196-200. ISSN 1745-2473. eISSN 1745-2481. Available under: doi: 10.1038/s41567-022-01844-0BibTex
@article{Gumus2023Calor-59538.2,
year={2023},
doi={10.1038/s41567-022-01844-0},
title={Calorimetry of a phase slip in a Josephson junction},
volume={19},
issn={1745-2473},
journal={Nature Physics},
pages={196--200},
author={Gümüs, Efe and Majidi, Danial and Nikolić, Danilo and Raif, Patrick and Karimi, Bayan and Peltonen, Joonas T. and Scheer, Elke and Pekola, Jukka P. and Courtois, Hervé and Belzig, Wolfgang and Winkelmann, Clemens B.}
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