Josephson detector of gravitational waves: non-formal consequence of formal analogy: critical wave length - critical current

Abstract

The DC-SQUID as the gravitational wave detector is offered. It is proposed to use the Josephson tunneling, and register a broadening of the gap between the superconducting needle and the plate rigidly connected with a transducer. For supersensitivity the suggested increasing of steepness for the dependence between Josephson inductancecurrent when the external current approaches the critical value is noted. Some estimates of its sensitivity on amplitude for 1 GHz range wave frequency is presented.