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Emission of radiation from a long Josephson junction in a thin film

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Abstract

Space-time nonlocal electrodynamic equations are derived for nonlinear vortex states of a Josephson junction in a film of thickness much smaller than the London penetration depth. The spectrum and damping of generalized Swihart waves propagating in such a junction are analyzed. The radiation damping constant associated with the possible emission of electromagnetic radiation is determined in the range of Swihart wave phase velocities exceeding the speed of light. The emission of radiation from nonlinear states having dimensions greater than the distance traversed by light in vacuum during the characteristic time of variation of the phase difference is investigated. It is shown that the flux density of radiation emitted by such states is localized in a plane orthogonal to the axis of the tunnel junction and depends weakly on the angle of observation in this plane.

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Authors and Affiliations

  1. P. N. Lebedev Physics Institute, Russian Academy of Sciences, 117924, Moscow, Russia

    A. S. Malishevskii, V. P. Silin & S. A. Uryupin

Authors
  1. A. S. Malishevskii
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  2. V. P. Silin
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  3. S. A. Uryupin
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Additional information

Zh. Éksp. Teor. Fiz. 115, 1426–1449 (April 1999)

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Malishevskii, A.S., Silin, V.P. & Uryupin, S.A. Emission of radiation from a long Josephson junction in a thin film. J. Exp. Theor. Phys. 88, 788–799 (1999). https://doi.org/10.1134/1.558857

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  • DOI: https://doi.org/10.1134/1.558857

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