Stabilization of Superconductivity by Electromagnetic Field in Narrow Channel

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The results on electromagnetic field effect upon the currents at which phase-slip centers appear in a superconducting channel are given. It is shown that in the presence of external microwave field, the resistive states of superconducting channels become more stable to direct current than in zero field and, consequently, stabilization of the resistive states of the channel due to the Josephson radiation from the phase-slip centers is possible.

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