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Microwave Cooling of Josephson Plasma Oscillations

J. Hammer, M. Aprili, and I. Petković
Phys. Rev. Lett. 107, 017001 – Published 29 June 2011


An extended Josephson junction can be described as a microwave cavity coupled to a Josephson oscillator. This is formally equivalent to a Fabry-Perot cavity with a freely vibrating mirror, where it has been shown that radiation pressure from photons in the cavity can reduce (increase) the vibrations of the mirror, effectively cooling (heating) it. We demonstrate that, similarly, the superconducting phase difference across a Josephson junction—the Josephson phase—can be “cooled” or “heated” by microwave excitation of the junction and that both these effects increase with microwave power.

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  • Received 26 October 2010


© 2011 American Physical Society

Authors & Affiliations

J. Hammer1, M. Aprili2,*, and I. Petković2

  • 1Institute for Experimental and Applied Physics, University of Regensburg, 93040 Regensburg, Germany
  • 2Laboratoire de Physique des Solides, UMR8502-CNRS, University Paris-Sud, 91405 Orsay Cedex, France

  • *aprili@lps.u-psud.fr

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Vol. 107, Iss. 1 — 1 July 2011

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Heating up of Superconductors
January 27, 2017

This collection marks the 30th anniversary of the discovery of high-temperature superconductors. The papers selected highlight some of the advances that have been made to date, both in understanding why these compounds behave in the way they do, and in utilizing them in applications. The papers included in the collection have been made free to read.

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